Rapid Review Flashcards
Abdominal pain, ascites, hepatomegaly
Budd-Chiari syndrome (posthepatic venous thrombosis)
Achilles tendon xanthoma
Familial hypercholesterolemia (decreased LDL receptor signaling)
Adrenal hemorrhage, hypotension, DIC
Waterhouse Friedrichsen syndrome (meningococcemia)
Arachnodactyly, lens dislocation, aortic dissection, hyperflexible joints
Marfan syndrome
Back pain, fever, night sweats, weight loss
Pott disease (vertebral TB)
Bilateral hilar adenopathy, uveitis
Sarcoidosis (noncaseating granulomas)
Blue sclera
Osteogenesis imperfecta (Type I collagen defect)
Bluish line on gingiva
Burton line (lead poisoning)
Bone pain, bone enlargement, arthritis
Paget disease of bone (increased osteoblastic and osteoclastic activity)
Bounding pulses, diastolic heart murmur, head bobbing
Aortic regurgitation
Café-au-lait spots, Lisch nodules (iris hamartoma)
Neurofibromatosis type I (+ pheochromocytoma, optic gliomas)
Café-au-lait spots, polyostotic fibrous dysplasia, precocious puberty, mutliple endocrine abnormalities
McCune-Albright (mosaic G-protein signaling mutation)
Calf pseudohypertrophy
Muscular dystrophy (Duchenne = most common; X-linked deletion of dystrophin gene)
“Cherry-red spots” on macula
Tay-Sachs (acc. ganglioside); Nieman-Pick (acc. sphingomyelin); central retinal artery occlusion
Chest pain, pericardial effusion/friction rub, persistent fever following MI
Dresser syndrome (autoimmune-mediated post-MI fibrinous pericarditis, 1-12 wks after acute episode)
Child w/ fever later develops red rash on face that spreads to body
“Slapped cheeks” (erythema infectiosum/fifth disease: parvovirus B19)
Chorea, dementia, caudate degeneration
Huntington disease (autosomal dominant CAG repeat expansion)
Chronic exercise intolerance w/ myalgia, fatigue, painful cramps, myoglobinuria
McArdle disease (muscle glycogen phosphorylase deficiency)
Conjugate lateral gaze palsy, horizontal diploplia
Internuclear ophthalmoplegia (damage to MLF; bilateral [MS], unilateral [stroke]
Continuous “machine-like” heart murmur
PDA (close w/ indomethacin; open/maintain with misoprostol)
Cutaneous/dermal edema due to connective tissue deposition
Myxedema (caused by hypothyroidism, Graves disease [pretibial])
Dark purple skin/mouth nodules in pt w/ AIDS
Kaposi sarcoma, ass. w/ HHV-8
Dermatitis, dementia, diarrhea
Pellagra (niacin [vit B3] deficiency)
Dilated cardiomyopathy, edema, alcoholism/malnutrition
Wet beriberi (thiamine [vit B1] deficiency)
Dog/cat bite resulting in infection
Pasteurella multocida
Dry eyes, dry mouth, arthritis
Sjögren syndrome (autoimmune destruction of exocrine glands)
Dysphagia (esophageal webs), glossitis, iron deficiency anemia
Plummer-Vinson syndrome (may progress to esophageal squamous cell carcinoma)
Enlarged, hard left supraclavicular node
Virchow node (abdominal metastasis)
Erythroderma, LAD, hepatosplenomegaly, atypical T cells
Mycosis fungoides (cutaneous T-cell lymphoma) or Sézary syndrome (mycosis fungoides + malignant T cells in blood)
Facial muscle spasm upon tapping
Chvostek sign (hypocalcemia)
Fat, female, forty, and fertile
Cholelithiasis
Fever, chills, headache, myalgia following antibiotic treatment for syphilis
Jarisch-Herxheimer reaction (rapid lysis of spirochetes results in toxin release)
Fever, cough, conjunctivitis, coryza, diffuse rash
Measles
Fever, night sweats, weight loss
B symptoms (staging) of lymphoma
Fibrous plaques in soft tissue of penis
Peyronie disease (connective tissue disorder)
Gout, intellectual disability, self-mutilating behavior in a boy
Lesch-Nyhan syndrome (HGPRT deficiency, X-linked recessive)
Hamartomatous GI polyps, hyper pigmentation of mouth/feet/hands
Peutz-Jeghers syndrome (inherited, benign polyposis can cause bowel obstruction; increase cancer risk, mainly GI)
Hepatosplenomegaly, osteoporosis, neurologic symptoms
Gaucher disease (glucocerebrosidase deficiency)
Hereditary nephritis, sensorineural hearing loss, cataracts
Alport syndrome (mutation in collagen IV); “Can’t see, can’t pee, can’t hear high-C”
Hyperphagia, hypersexuality, hyperorality, hyperdocility
Klüver-Bucy syndrome (bilateral amygdala lesion)
Hyperreflexia, hypertonia, Babinski sign present
UMN damage
Hyporeflexia, hypotonia, atrophy, fasciculations
LMN damage
Hypoxemia, polycythemia, hypercapnia
“Blue bloater” (Chronic bronchitis: hyperplasia of mucous cells)
Indurated, ulcerated genital lesion
Nonpainful: chancre (primary syphilis: treponema pallidum)
Painful, w/ exudate: chancroid (Haemophilus ducreyi)
“You ‘do cry’ w/ H. ducreyi”
Infant w/ cleft lip/palate, microcephaly or holoprosencephaly, polydactyly, cutis aplasia
Patau syndrome (trisomy 13)
Infant w/ failure to thrive, hepatosplenomegaly, and neurodegeneration
Nieman-Pick disease (genetic sphingomyelinase deficiency)
Infant w/ hypoglycemia, failure to thrive, and hepatomegaly
Cori disease (debranching enzyme deficiency) or Von Gierke disease (glucose-6-P deficiency, more severe)
Infant w/ microcephaly, rocker-bottom feet, clenched hands, and structural heart defect
Edwards syndrome (trisomy 18)
Jaundice, palpable distended non-tender gallbladder
Courvoisier sign (distal obstruction of biliary tree)
Large rash w/ bull’s-eye appearance
Erythema chronicum migraines from Ixodes tick bite (Lyme disease: Borrelia)
Lucid interval after traumatic brain injury
Epidural hematoma (middle meningeal artery rupture)
Male child, recurrent infections, no mature B cells
Bruton disease (X-linked agammaglobulinemia)
Mucosal bleeding and prolonged bleeding time
Glanzmann thrombasthenia (defect in platelet aggregation due to lack of GpIIb/IIIa)
Muffled hear sounds, distended neck veins, hypotension
Beck triad of cardiac tamponade
Multiple colon polyps, osteomas/soft tissue tumors, impacted/supernumerary teeth
Gardner syndrome (subtype of FAP)
Myopathy (infantile hypertrophic cardiomyopathy), exercise intolerance
Pompe disease (lysosomal alpha-1,4-glucosidase deficiency)
Neonate w/ arm paralysis following difficult birth
Erb-Duchenne palsy (superior trunk [C5-C6] brachial plexus injury: “waiter’s tip”
No lactation postpartum, absent menstruation, cold intolerance
Sheehan syndrome (pituitary infarction)
Nystagmus, intention tremor, scanning speech, bilateral internuclear ophthalmoplegia
Multiple Sclerosis
Oscillating slow/fast breathing
Cheyne-Stokes respirations (central apnea in CHF or increased intracranial pressure)
Painful blue fingers/toes, hemolytic anemia
Cold agglutinin disease (AI hemolytic anemia caused by Mycoplasma pneumoniae, infectious mononucleosis)
Painful, pale, cold fingers/toes
Raynaud phenomenon (vasospasm in extremities)
Painful, raised red lesions on pad of fingers/toes
Osler nodes (infective endocarditis, immune complex deposition)
Painless erythematous lesions on palms and soles
Janeway lesions (infective endocarditis, septic emboli/microabscesses)
Painless jaundice
Cancer of the pancreatic head obstructing bile duct
Palpable purpura on buttocks/legs, joint pain, abdominal pain (child), hematuria
Henoch-Schönlein purpura (IgA vasculitis affecting skin and kidneys)
Pancreatic, pituitary, parathyroid tumors
MEN 1 (autosomal dominant)
Periorbital and/or peripheral edema, proteinuria, hypoalbuminemia, hypercholesterolemia
Nephrotic syndrome
Pink complexion, dyspnea, hyperventilation
“Pink puffer” (emphysema: centriacinar [smoking], panacinar [alpha1-antitrypsin deficiency])
Polyuria, renal tubular acidosis type II, growth failure, electrolyte imbalances, hypophosphatemic rickets
Fanconi syndrome (proximal tubular reabsorption defect)
Pruritic, purple, polygonal planar papules and plaques (6 P’s)
Lichen planus
Ptosis, miosis, anhidrosis
Horner syndrome (sympathetic chain lesion)
Pupil accommodates but doesn’t react
Argyll Robertson pupil (neurosyphilis)
Rapidly progressive leg weakness that ascends following GI/upper resp infections
Guillain-Barré syndrome (acute autoimmune inflammatory demyelinating polyneuropathy)
Rash on palms and soles
Coxsackie A, secondary syphilis, Rocky Mt spotted fever
Recurrent colds, unusual eczema, high serum IgE
Hyper-IgE syndrome (Job syndrome: neutrophil chemotaxis abnormality)
Red “currant jelly” sputum in alcoholic or diabetic patients
Klebsiella pneumoniae
Red “currant jelly” stools
Acute mesenteric ischemia (adults); intussusception (infants)
Red, itchy, swollen rash of nipple/areola
Paget disease of the breast (sign of underlying neoplasm)
Red urine in the morning, fragile RBCs
Paroxysmal nocturnal hemoglobinuria
RCC (bilateral), hemangioblastomas, angiomatosis, pheochromocytoma
von Hippel-Lindau disease (dominant tumor suppressor gene mutation)
Resting tremor, rigidity, akinesia, postural instability
Parkinson disease (nigrostriatal dopamine depletion)
Retinal hemorrhages w/ pale centers
Roth spots (bacterial endocarditis)
Severe jaundice in neonate
Crigler-Najjar syndrome (congenital unconjugated hyperbilirubinemia)
Severe RLQ pain w/ palpation of LLQ
Rovsing sign (acute appendicitis)
Severe RLQ pain w/ rebound tenderness
McBurney sign (acute appendicitis)
Short stature, increased incidence of tumors/leukemia, aplastic anemia
Fanconi anemia (genetic loss of DNA cross link repair; often progresses to AML)
Single palmar crease
Down syndrome
Situs inversus, chronic sinusitis, bronchiectasis, infertility
Kartagener syndrome (dynein arm defect affecting cilia)
Skin hyperpigmentation, hypotension, fatigue
Addison disease (primary adrenocortical insufficiency –> increased ACTH and increased alpha-MSH production)
Slow, progressive muscle weakness in boys
Becker muscular dystrophy (X-linked missense mutation in dystophin; less severe than Duchenne)
Small, irregular red spots on buccal/lingual mucosa w/ blue-white centers
Koplik spots (measles; rubeola virus)
Smooth, flat, moist, painless white lesions on genitals
Condylomata lata (secondary syphilis)
Splinter hemorrhages in fingernails
Bacterial endocarditis
“Strawberry tongue”
Scarlet fever, Kawasaki disease, toxic shock syndrome
Streak ovaries, congenital heart disease, horseshoe kidney, cystic hygroma at birth, short stature, webbed neck, lymphedema
Turner syndrome (45, XO)
Sudden swollen/painful big toe joint, tophi
Gout/podagra (hyperuricemia)
Swollen gums, mucosal bleeding, poor wound healing, petechiae
Scurvy (Vit C deficiency; can’t hydroxylate proline/lysine for collagen synthesis)
Swollen, hard, painful finger joints
Osteoarthritis (osteophytes on PIP [Bouchard nodes], DIP [Heberden nodes])
Systolic ejection murmur (crescendo-decrescendo)
Aortic valve stenosis
Medullary thyroid CA, parathyroid tumors, pheochromocytoma
MEN 2A (autosomal dominant ret mutation)
Medullary thyroid CA, pheochromocytoma, mucosal neuromas
MEN 2B (autosomal dominant ret mutation)
Toe extension/fanning upon plantar scrape
Babinski sign (UMN lesion)
Unilateral facial drooping involving forehead
Facial nerve (LMN CN VII palsy)
Urethritis, conjunctivitis, arthritis in a male
Reactive arthritis (ass. w/ HLA-B27)
Vascular birthmark (port-wine stain)
Hemangioma (benign, but ass. w/ Sturge-Weber syndrome)
Weight loss, diarrhea, arthritis, fever, adenopathy
Whipple disease (Tropheryma whipplei)
Anticentromere antibodies
Scleroderma (CREST)
Antidesmoglein (epithelial) antibodies
Pemphigus vulgaris (blistering)
Anti-glomerular basement membrane antibodies
Goodpasture syndrome (glomerulonephritis & hemoptysis)
Antihistone antibodies
Drug induced SLE (hydrazine, INH, phenytoin, procainamide)
Anti-IgG antibodies
Rheumatoid arthritis (systemic inflammation, joint pannus, boutonniére deformity)
Antimitochondrial antibodies (AMAs)
Primary biliary cirrhosis (female, cholestasis, portal HTN)
Antineutrophil cytoplasmic antibodies (ANCAs)
Microscopic polyangiitis and Churg-Strauss syndrome (MPO-ANCA/p-ANCA); granulomatosis w/ polyangiitis (Wegener; PR3-ANCA/c-ANCA)
Antinuclear antibodies (ANAs: anti-Smith & anti-dsDNA)
SLE (type III hypersensitivity)
Antiplatelet antibodies
Idiopathic thrombocytopenic purpura
Anti-topoisomerase antibodies
Diffuse systemic scleroderma
Anti-transglutaminase/anti-gliadin/anti-endomysial antibodies
Celiac disease (diarrhea, distention, weight loss)
“Apple core” lesion on abdominal x-ray
Colorectal cancer (usually left-sided)
Azurophilic peroxidase positive granular inclusions in granulocytes and myeloblasts
Auer rods (AML, especially the promyelocytic [M3] type)
Bacitracin response
Sensitive: Streptococcus pyogenes (group A); resistant: Stretococcus agalactiae (group B)
“Bamboo spine” on x-ray
Akylosing spondylitis (chronic inflammatory arthritis: HLA-B27)
Basophilic nuclear remnants in RBCs
Howell-Jolly bodies (due to splenectomy or nonfunctional spleen)
Basophilic stippling of RBCs
Lead poisoning or sideroblastic anemia
Bloody tap on LP
Subarachnoid hemorrhage
“Boot-shaped” heart on x-ray
Tetrolagy of Fallot, RVH
Branching gram-positive rods w/ sulfur granules
Actinomyces israelii
Bronchogenic apical lung tumor on imaging
Pancoast tumor (can compress sympathetic ganglion and cause Horner syndrome)
“Brown” tumor of bone
Hyperparathyroidism or osteitis fibrosa cystica (deposited hemosiderin from hemorrhage gives brown color)
Cardiomegaly w/ apical atrophy
Chagas disease (Trypanosoma cruzi)
Cellular crescents in Bowman capsule
Rapidly progressive crescentic glomerulonephritis
“Chocolate cyst” of ovary
Endometriosis (frequently involves both ovaries)
Circular grouping of dark tumor cells surrounding pale neurofibrils
Homer-Wright rosettes (neuroblastoma, medulloblastoma, retinoblastoma)
Colonies of mucoid Pseudomonas in lungs
Cystic fibrosis (AR mutation in CFTR gene –> fat-soluble vitamin deficiency and mucous plugs)
Decreased AFP in amniotic fluid/maternal serum
Down syndrome or other chromosomal abnormality
Degeneration of dorsal column nerves
Tabes dorsalis (tertiary syphilis), subacute combined degeneration (dorsal columns and lateral corticospinal tracts affected)
Depigmentation of neurons in substantial nigra
Parkinson Disease (basal ganglia disorder: rigidity, resting tremor, bradykinesia)
Desquamated epithelium casts in sputum
Curschmann spirals (bronchial asthma; can result in whorled mucous plugs)
Disarrayed granulosa cells in eosinophilic fluid
Call-Exner bodies (granulosa-theca cell tumor of the ovary)
Dysplastic squamous cervical cells with nuclear enlargement and hyperchromasia
Koilocytes (HPV: predisposes to cervical cancer)
Enlarged cells with intranuclear inclusion bodies
“Owl eye” appearance of CMV
Enlarged thyroid cells w/ ground-glass nuclei
“Orphan Annie” eyes nuclei (papillary carcinoma of the thyroid)
Eosinophilic cytoplasmic inclusion in liver cell
Mallory body (alcoholic liver disease)
Eosinophilic cytoplasmic inclusion in nerve cell
Lewy Body (Parkinson disease)
Eosinophilic globule in liver
Councilman body (toxic or viral hepatitis, often yellow fever)
Eosinophilic inclusion bodies in cytoplasm of hippocampal and cerebellar nerve cells
Negri bodies of rabies
Extracellular amyloid deposition in gray matter of brain
Senile plaques (Alzheimer disease)
Gian B cells with bilobed nuclei with prominent inclusions (“Owl’s eye”)
Reed-Sternberg cells (Hodgkin lymphoma)
Glomerulus-like structure surrounding vessel in germ cells
Schiller-Duval bodies (yolk sac tumor)
“Hair on end” (crew-cut) appearance on x-ray
Beta-Thalassemia, sickle cell anemia (marrow expansion)
hCG elevated
Choriocarcinoma, hydatiform mole (occurs w/ and without embryo, and multiple pregnancy)
Heart nodules (granulomatous)
Aschoff bodies (rheumatic fever)
Heterophile antibodies
Infectious mononucleosis (EBV)
Hexagonal, double-pointed, needle-crystals in bronchial secretions
Bronchial asthma (Charcot-Leyden crystals: eosinophilic granules)
High level of D-dimers
DVT, PE, DIC
Hilar lymphadenopathy, peripheral granulomatous lesion in middle or lower lung lobes (can calcify)
Ghon comlex (primary TB: Mycobacterium bacilli)
“Honeycomb lung” on x-ray or CT
Interstitial pulmonary fibrosis
Hypercoagulability (leading to migrating DVTs and vasculitis)
Trousseau syndrome (adenocarcinoma of pancreas or lung)
Hypersegmented neutrophils
Megaloblastic anemia (B12 deficiency: neurologic symptoms; folate deficiency: no neurologic deficiency)
Hypertension, hypokalemia, metabolic alkalosis
Conn syndrome
Hypochromic, microcytic anemia
Iron deficiency anemia, lead poisoning, thalassemia (fetal hemoglobin sometimes present)
Increased AFP in amniotic fluid/maternal serum
Dating error, anencephaly, spina bifida (neural tube defects)
Increased uric acid levels
Gout, Lesch-Nyhan syndrome, tumor lysis syndrome, loop and thiazide diuretics
Intranuclear eosinophilic droplet-like bodies
Cowdry type A bodies (HSV or CMV)
Iron-containing nodules in alveolar septum
Ferrugious bodies (asbestosis)
Keratin pearls on a skin biopsy
Squamous cell carcinoma
Large lysosomal vesicles in phagocytes, immunodeficiency
Chédiak-Higashi disease (congenital failure of phagolysosome formation)
“Lead pipe” appearance of colon on barium enema x-ray
Ulcerative colitis (loss of haustrau)
Linear appearance of IgG deposition on glomerular basement membrane
Goodpasture syndrome
Low serum ceruloplasmin
Wison disease (hepatolenticular degeneration)
“Lumpy bumpy” appearance of glomeruli on immunofluorescence
Poststreptococcal glomerulonephritis (immune complex deposition of IgG and C3b)
Lytic (“hole punched”) bone lesions on x-ray
Multiple myeloma
Mammary gland (“Blue domed”) cyst
Fibrocystic change of the breast
Monoclonal antibody spike
- monoclonal myeloma (usually IgG or IgA)
- monoclonal gammopathy of undetermined significance (MGUS consequence of aging)
- Waldenstöm (M protein = IgM) macroglobulinemia
- primary amyloidosis
Mucin-filled cell with peripheral nucleus
“Signet ring” (gastric carcinoma)
Narrowing of bowel lumen on barium x-ray
“String sign” (Crohn disease)
Necrotizing vasculitis (lungs) and necrotizing glomerulonephritis
Granulomatosis with polyangiitis (Wegener; PR3-ANCA/c-ANCA) and Goodpasture syndrome (anti-basement membrane antibodies)
Needle-shaped, negatively birefringent crystals
Gout (monosodium urate crystals)
Nodular hyaline deposits in glomeruli
Kimmelstiel-Wilson nodules (diabetic nephropathy)
Novobiocin response
Sensitive: Staph epidermidis; resistant: Staph saprophyticus
“Nutmeg” appearance of liver
Chronic passive congestion of liver due to right heart failure
“Onion skin” periosteal reaction
Ewing sarcoma (malignant round-cell tumor)
Optochin response
Sensitive: Strep pneumo; resistant: viridans strep
Periosteum raised from bone, creating triangular area
Codman triangle on x-ray (osteosarcoma, Ewing sarcoma, pyogenic osteomyelitis)
Podocyte fusion or “effacement” on electron microscopy
Minimal change disease (child w/ nephrotic syndrome)
Polished, “ivory-like” appearance of bone at cartilage erosion
Eburnation (osteoarthritis resulting in bony sclerosis)
Protein aggregates in neurons from hyperphosphorylation of tau protein
Neurofibrillary tangles (Alzheimer disease) and Pick bodies (Pick disease)
Psammoma bodies
Meningiomas, papillary thyroid carcinoma, mesothelioma, papillary serous carcinoma of the endometrium and ovary
Pseudopalisading tumor cells on brain biopsy
Glioblastoma mutliforme
RBC casts in urine
Acute glomerulonephritis
Rectangular, crystal-like, cytoplasmic inclusions in Leydig cells
Reinke crystals (Leydig cell tumor)
Renal epithelial casts in urine
Acute toxic/viral renal injury
Rhomboid crystals, positively birefringent
Pseudogout (calcium pyrophosphate dihydrate crystals)
Rib notching, LE claudication, decreased femoral pulses
Coarctation of the aorta
Ring enhancing brain lesion in AIDS
Toxoplasma gondii, CNS lymphoma
Sheets of medium-sized lymphoid cells w/ scattered pale, tingible body-laden macrophages (“starry sky” histology)
Burkitt lymphoma (t[8;14] c-myc activation, associated w/ EBV; “black sky” made up of malignant cells)
Silver-staining spherical aggregation of tau proteins in neurons
Pick bodies (Pick disease: progressive dementia, changes in personality)
“Soap bubble” in femur or tibia on x-ray
Giant cell tumor of bone (generally benign)
“Spikes” on basement membrane, “dome-like” sub epithelial deposits
Membranous glomerulonephritis (may progress to nephrotic syndrome)
Stacks of RBCs
Rouleaux formation (high ESR, multiple myeloma)
“Tennis racket”-shaped cytoplasmic organelles (EM) in Langerhans cells
Birbeck granules (Langerhans cell histiocytosis or histiocytosis X: eosinophilic granuloma)
“Thumb sign” on lateral x-ray
Epiglottitis (Haemophilus influenzae)
Thyroid-like appearance of kidney
Chronic bacterial pyelonephritis
“Tram-track” appearance of capillary loops of glomerular basement membranes on light microscopy
Membranoproliferative glomerulonephritis
Triglyceride accumulation in liver cell vacuoles
Fatty liver disease (alcoholic or metabolic syndrome)
“Waxy” casts w/ very low urine flow
Chronic end-stage renal disease
WBC casts in urine
Acute pyelonephritis
WBCs that look “smudged”
CLL (almost always B cell)
“Wire loop” glomerular capillary appearance on light microscopy
Lupus nephropathy
Yellowish CSF
Xanthochromia (e.g., due to subarachnoid hemorrhage)
Tx: absence seizures
Ethosuximide
Tx: acute promyelocytic leukemia (M3)
All-trans retinoic acid
Tx: alcohol withdrawal
Benzodiazepines
Anticoagulation during pregnancy
Heparin
Tx: arrhythmia in damaged cardiac tissue
Class IB antiarrhythmic (lidocaine, mexiletine, tocainide)
Tx: bipolar disorder
Lithium, valproate, carbamazepine, lamotrigine (mood stabilizers)
Tx: Candida albicans
Amphotericin B (systemic), nystatin (oral thrush), azoles (vaginitis)
Tx: Carcinoid syndrome
Octreotide
Tx: chronic hepatitis
IFN-alpha
Tx: CML
Imatinib
Tx: CMV
ganciclovir
Tx: Crohn disease
Corticosteroids, infliximab, methotrexate, azathioprine
Tx: Cryptococcus neoformans
Fluconazole (prophylaxis in AIDS patients)
Tx: Diabetic ketoacidosis
Fluids, insulin, potassium
Tx: ethylene glycol/methanol intoxication
Fomepizole (alcohol dehydrogenase inhibitor)
Tx: H. influenza B
Rifampin (prophylaxis)
Tx: Generalized anxiety disorder
Buspirone
Tx: heparin toxicity (acute)
protamine sulfate
Tx: NER2/neu pos. breast CA
Trastuzumab
Tx: hyperaldosteronism
Spironolactone
Tx: hypertriglyceridemia
Fibrate
Tx: malaria
chloroquine/mefloquine (for blood schizont), primaquine (for liver hypnozoite)
Tx: malignant hyperthermia
Dantrolene
Tx: Migraine
Sumatriptan
Tx: Multiple sclerosis
Beta-interferon, immunosuppresion, natalizumab
Tx: Mycobacterium tuberculosis
RIPE (rifampin, INH, pyrazinamide, ethambutol)
Tx: prolactinoma
Bromocriptine (dopamine agonist)
Tx: prostate cancer/uterine fibroids
Leuprolide, GnRH (continuous)
Tx: Pulmonary arterial hypertension (idiopathic)
Sildenafil, bosentan, epoprostenol
Tx: SIADH
Demeclocycline, lithium, vasopressin receptor antagonists
Tx: Sickle cell anemia
Hydroxyurea (increased fetal hemoglobin)
Tx: Sporothrix schenckii
Oral potassium iodide
Tx: tonic-clonic seizures
Phenytoin, valproate, carbamazepine
Tx: trigeminal neuralgia (tic douloureux)
Carbamazepine
Acute gastric ulcer associated w/ CNS injury
Cushing ulcer (increased intracranial pressure stimulates vagal gastric secretion)
Acute gastric ulcer associated w/ severe burns
Curling ulcer (greatly reduced plasma volume results in sloughing of gastric mucosa)
Alternating areas of transmural inflammation and normal colon
Skip lesions (Crohn disease)
Atrophy of mammillary bodies
Wernicke encephalopathy (thiamine deficiency causing ataxia, ophthalmoplegia, and confusion)
Bleeding disorder w/ GpIb deficiency
Bernar-Soulier syndrome (defect in platelet adhesion to von Willebrand factor)
Cardiac manifestation of lupus
Libman-Sacks endocarditis (non-bacterial, affecting both sides of mitral valve)
Cerebellar tonsillar herniation
Chiari II malformation
Congenital adrenal hyperplasia, hypotension
21-hydroxylase deficiency
Congenital conjugated hyperbilirubinemia (black liver)
Dubin-Johnson syndrome (inability of hepatocytes to secrete conjugated bilirubin into bile)
Hepatocellular carcinoma
Cirrhotic liver (associated w/ hepatitis B & C and with alcoholism)
HLA-B27
Ankylosing spondylitis, reactive arthritis, ulcerative colitis, psoriatic arthritis
HLA-DR3 or -DR4
Diabetes mellitus type 1, rheumatoid arthritis, SLE
Infections in chronic granulomatous disease
Staph aureus, E. col, Aspergillus (catalase +)
Kidney stones
- Calcium = radiopaque
- Struvite (ammonium) = radiopaque (formed by urease + organisms such as Proteus vulgarism or Staphylococcus)
- Uric acid = radiolucent
Metastases to bone
Prostate, breast > lung > thyroid
Metastases to brain
Lung > breast > genitourinary > melanoma > GI
Metastases to liver
Colon»_space; stomach, pancreas
Mitral valve stenosis
Rheumatic heart disease
Mixed (UMN and LMN) motor neuron disease
Amyotrophic lateral sclerosis
Osteomyelitis in sickle cell disease
Salmonella
Nephrotic syndrome (adults)
Focal segmental glomerulosclerosis
Nephrotic syndrome (kids)
Minimal change disease
Philadelphia chromosome t(9;22) (bcr-abl)
CML (may sometime be associated w/ ALL/AML)
S4
Stiff/hypertrophic ventricle (aortic stenosis, restrictive cardiomyopathy)
SIADH
Small cell carcinoma of the lung
Stomach ulcerations and high gastrin levels
Zollinger-Ellison syndrome (gastrinoma of duodenum or pancreas)
t(14;18)
Follicular lymphomas (bcl-2 activation)
t(8;14)
Burkitt lymphoma (c-myc activation)
t(9;22)
Philadelphia chromosome, CML (bcr-abl fusion)
Thyroid cancer
Papillary carcinoma
Schizophrenia
> 6 months
Brief psychotic disorder
< 1 month
Schizophreniform
1-6 months
Schizoaffective disorder
At least 2 weeks of stable mood w/ psychotic symptoms, plus a major depressive, manic, or mixed episode
Generalized anxiety disorder
> 6 months
Adjustment disorder
Identifiable psychosocial stressor; lasting < 6 months
PTSD
> 1 month
Acute stress disorder
3 days - <1 month
Schizoid
Voluntary social withdrawal. Content with social isolation
Cluster A. “Schizoids avoid”
Schizotypal
Eccentric appearance, odd beliefs or magical thinking
Cluster A
Down syndrome
Quad screen: decreased AFP, increased hCG, decreased estriol, increased inhibin A
Edwards syndrome
Quad screen: decreased AFP, decreased hCG, decreased estriol, decreased/normal inhibin A
Vit B3
Niacin
- NAD+/NADP+ (redox rxns)
- derived from tryptophan
Deficiency - Pellagra
Vit B6
Pridoxine
- converted to pyridoxal phosphate
Deficiency - convulsions, hyperirritability, peripheral neuropathy, sideroblastic anemias
Vit B7
Biotin
- cofactors for carboxylation enzymes
Vit B9
Folic Acid
- inverted to THF
- important role in DNA/RNA synth
Deficiency - macrocytic, megaliths stop anemia; NO neuro sxs; normal methylmalonic acid
Vit B12
Cobalamin
Deficiency- macrocytic, megaliths stick anemia; *paresthesias; increased methylmalonic acid.
Essential fructosuria
Defect in fructokinase
Benign - fructose appears in blood/urine
Fructose intolerance
Deficient aldolase B
Sxs: hypoglycemia, jaundice, hepatomegaly, vomiting
Galactokinase deficiency
Relatively mild
- galctitol accumulates
Infantile cataracts
Classic galactosemia
Absence of galactose-1-P uridyltransferase
Sxs: fail to thrive, jaundice, hepatomegaly, infant cataracts, intellectual disability.
Ornithine transcarbamylase deficiency
Urea cycle disorder
- excess carbamoyl phosphate is converted to orotic acid
- decreased BUN, sxs of hyperammonia
Homocystinuria
Findings: increased homocysteine in urine, intellectual disability, osteoporosis, tall stature, kyphosis, lens subluxation, thrombosis, atherosclerosis
Maple syrup urine disease
Due to decreased alpha-ketoacid dehydrogenase (B1)
Tx: restrict leucine, isoleucine, valine in diet
Diphtheria toxin
Inactivation of EF-2
Exotoxin A
Pseudomonas
Inactivation of EF-2
Shiga toxin
Inactivates 60S ribosome by removing adenine from rRNA
Shiga-like toxin
EHEC
Inactivates 60S ribosome by removing adenine from rRNA
Enhances cytokines release, causing HUS; does not invade host
Heat-Labile toxin
ETEC
Over activates adenylate cyclase–> Cl- secretion in gut and H2O efflux
Watery diarrhea (Travelers diarrhea)
Heat-stable toxin
ETEC
Over activates guanylate cyclase –> decreased resorption of NaCl and H2O in gut
Watery diarrhea (travelers diarrhea)
Cholera toxin
Increased cAMP by permanently activating Gs –> increased Cl- secretion in gut and H2O efflux
“Rice-water” diarrhea
Pertussis toxin
Overactivates adenylate cyclase by disabling Gi, impairing phagocytosis to permit survival of microbe
Alpha toxin
C. Perfringens
Phospholipase (lecithinase) that degrades tissue and cell membranes
Streptolysin O
Strep pyogenes
Protein that degrades cell membrane; host antibodies against toxin (ASO) used to diagnose rheumatic fever
Lactose-fermenting G(-) rods
Citrobacter Klebsiella E. Coli Enterobacter Serratia
HIV env gene
gp120 - attachment to host CD4+ T cell
gp41 - fusion and entry
HIV gag gene
p24 - capsid protein
HIV pol gene
Reverse transcriptase, aspartate protease, integrase
CSF findings in bacterial meningitis
Increased PMNs, increased protein, DECREASED sugar
CSF findings in Viral meningitis
Increased LYMPHOCYTES, NORMAL sugar
Congenital toxoplasmosis
Triad: chorizo retinitis, hydrocephalus, intracranial calcifications
Congenital rubella
Triad: PDA, cataracts, deafness ( ~ “blueberry muffin” rash)
Congenital CMV
Hearing loss, seizures, petechial rash
Congenital HSV-2
Encephalitis, hermetic lesions
Congenital parvovirus B-19
Hydrops fetalis
Anti-smooth muscle
Autoimmune hepatitis
Anti-TSH receptor
Graves
c-ANCA (PR3-ANCA)
Granulomatosis with polyangiitis
p-ANCA (MPO-ANCA)
Microscopic polyangiitis, Churg-Strauss syndrome
anti-CCP
Rheumatoid arthritis
anti-thyroglobulin
Hashimoto
Cyclosporine
Calcinuerin inhibitor
- prevents IL-2 transcription
Nephrotoxic & gingival hyperplasia
Tacrolimus
Calcineurin inhibitor
- prevents IL-2 transcription
Azathioprine
Antimetabolite precursor of 6-mercaptopurine
-blocks nucleotide synthesis
Degraded by xanthine oxidase
Glucocorticoids
Inhibit NF-kB
- decrease transcription of many cytokines
Rituximab
CD20
Trastuzumab
HER2/neu
Infliximab
Adalimumab
TNF-alpha
Denosumab
RANKL
Renal clearance
Cx = UxV/Px
Glomerular Filtration Rate
GFR= Uinulin X V/Pinulin = Cinulin
Effective renal plasma flow
ERPF = U(pah) x V/P(pah)
RBF = RPF/(1-Hct)
Filtration fraction
FF=GFR/RPF
Normal = 20%