Buzzword Bingo Flashcards
Quick recall of key words and phrases
allergic sinusitis, steroid-dependent asthma, and eosinophilia, with fleeting infiltrates on CXR
EGPA
Rash on palms and soles
Secondary syphilis; Rocky Mtn Spotted Fever (Rickettsia rickettsii); coxsackievirus
Does prior infection with most STIs protect against re-infection?
NOOO it doesn’t, so re-test patients!
Slapped cheek rash
Parvovirus B19
1 bacterial STD in the US
Chlamydia
2 bacterial STD in the US
Gonorrhea
Small lymphocytes and smudged cells with increased WBC
CLL
All patients with STIs should be evaluated for ___.
All patients with STIs should be evaluated for HIV! Why? Many STDs facilitate the transmission of HIV, such as chlamydia, gonorrhea, HSV, etc - anything that alters the mucosal integrity.
Acute monoarthritis is ___ until proven otherwise!
Acute monoarthritis is INFECTIOUS until proven otherwise!
Consequently, do a joint aspirate to rule out infection and aid in diagnosis.
Koplik spots -white spots on tongue that bleed when you scrape them
Measles
Limb girdle pain in older patients
Polymyalgia rheumatica. Resolves FAST with prednisone
Baby with deafness, cataracts, heart defects, microcephaly, mental retardation
exposure to rubella in utero
If you see polymyalgia rheumatica…
think Giant cell arteritis! affects aorta, carotid branches. They’re frequently found together.
CBFalpha - ETO fusion protein blocking differentiation
AML
BCR-ABL
CML
colon with fissures and fistulas
Crohn’s disease
t(11;14)
Mantle cell lymphoma
transmural inflammation of colon wall with non-necrotic granulomas
Crohn’s disease
Oral apthous ulcers and genital ulcers
Behcet’s disease
This vasculitis has an increased incidence in patients who are HLA-B51+
Behcet’s disease
Lower resp (hemoptysis, cavitating pulmonary lesions) + upper resp (sinusitis, epistaxis, saddle nose) + renal (hematuria and maybe nephritis)
Granulomatosis with polyangiitis (GPA) - ANCA-associated vasculitis
Continuous inflammation of colon without skip lesions
Ulcerative Colitis
Young person with an MI… and a PMH of a severe fever treated with IVIG and aspirin
Kawasaki disease
t(15;17)
Acute promyelocytic leukemia
t(8;14)
Burkitt lymphoma
MYC - Ig heavy chain locus, increasing B cell proliferation
Burkitt lymphoma
Really high basophil count
CML
t(9;22)
CML
treatable with ATRA and arsenic
APL (acute promyelocytic leukemia)
acanthosis nigricans
MetS, T2DM, stomach cancer
t(14;18)
Follicular lymphoma
resp and renal symptoms with positive C-ANCA (antibody against PR-3)
Granulomatosis with polyangiitis (GPA). Mnemonic is “Get a C GPA in C-PR to pass”
positive pathergy test - stick a needle in the skin and it forms a lump
Behcet’s disease
upregulation of Bcl2 due to microdeletion of regulatory microRNA on chromosome 13
CLL
Rice water stools
Cholera
CD13 and CD33
AML
long crystals with negative birefringence
Uric acid - gout
yellow plaques around eyes
xanthelesma - indicates elevated LDL, higher risk of stroke and CVD
Strawberry tongue
Kawasaki disease
CD19, CD10, TdT
B cell ALL
fascicular inflammatory infiltrate on muscle biopsy, both T and B cells
dermatomyositis
20% blasts or greater in bone marrow or blood (esp. marrow)
acute leukemias
either JAK2, calreticulin, or cMPL mutation, with really high platelet count
essential thrombocytosis
cyclin D1 - Ig heavy chain locus
Mantle cell lymphoma
reticulin fibrosis in the marrow, with some having JAK2
primary myelofibrosis
Bcl2 - Ig heavy chain locus preventing apoptosis
Follicular lymphoma
Most common childhood systemic vasculitis
Henoch-Schonlein purpura
CD3, CD7, TdT
T cell ALL
rhomboid crystals with positive birefringence
Calcium pyrophosphate
hyposegmented neutrophils with hypogranulation, and ringed sideroblasts
myelodysplastic disorders
apple-green on polarization
Amyloidosis, which can occur in plasma cell disorders like multiple myeloma
abnormal nailfold exam
secondary Raynaud’s
photosensitive dermatitis, often with diarrhea and dementia
Pellagra = vitamin B3 (niacin) deficiency
black flies near rivers, causing blindness
onchocerchiasis, caused by onchocerca volvulus
Vasculitis associated with IgA nephropathy
Henoch-Schonlein purpura
Gauchon’s papules: hyperkeratotic papules
dermatomyositis
Tick bite from Ixodes??
Babesia, Anaplasma, Lyme
Speckled pattern ANA, Ro and La especially
Sjogren’s syndrome
weak shoulders and hips but strong hand grip
dermatomyositis or polymyositis
GI infection: afebrile watery diarrhea
ETEC, norovirus, cholera, C.perfringens, viral, Bacillus cereus (long incubation), cryptosporidia, C.diff (15% are febrile, though)
t(8;21)
AML
Palpable purpura, pauci-immune glomerulonephritis, but no nasopharyngeal involvement
Microscopic polyangiitis
counseling for patients on methotrexate
avoid pregnancy, avoid alcohol
PML-RARalpha fusion protein blocking differentiation
APL (acute promyelocytic leukemia)
muscle biopsy shows rimmed vacuoles and inflammatory infiltrate around muscle fibers
inclusion body myositis
nail spooning, aka koilonychia
iron deficiency
thin as a broom without edema
marasma = chronic starvation
Really high hematocrit, JAK2 mutation
polycythemia vera
Perianal pruritus in kids
Pinworm - enterobicus vermicularis
swollen belly with edema and fatty liver in a starving kid
kwashiorkor = not enough protein
P-ANCA, no granulomas, involves lungs/kidneys/skin
Microscopic polyangiitis
yellow-red papules on extensor surfaces
eruptive xanthoma - indicates elevated TGs, with increased risk of acute pancreatitis
MOA of echinocandins
Inhibits Beta glucan synthase in fungi
Punched out lytic bone lesions on X-Ray with monoclonal M spike
Multiple Myeloma
erythematous papules and plaques in genital and perineal region
extramammary Paget’s disease
MOA of Amphotericin B
Anti-fungal: binds ergosterol and causes membrane pores
inflammatory infiltrate around individual muscle fibers, mostly CD8+ T cells
polymyositis
sudden appearance of many seborrheic keratoses
adenocarcinoma of stomach or colon
itchy without any rash, “butterfly sign”
paraneoplastic pruritus, commonly found in lymphoma (esp. Hodgkin lymphoma) and leukemia
treatment for IBD-associated arthritis - what not to do
avoid NSAIDs!
Oxidase negative GNRs
Salmonella, shigella
Food poisoning from sprouts
EHEC
Granulomatous thickening/narrowing of aortic arch
Takayasu arteritis
rash, myalgia, spread by flying squirrels
epidemic typhus (R. prowazekii)
Elephantiasis affecting lower limbs, scrotal swelling
Wuchereria bancrofti - human filariasis
worm crawling in eye
loa loa
Eggs with points/spikes
Schistosomiasis. Lateral spine is mansoni, spine at the tip is haematobium, no spine is japonicum
Lower limb ulcer with protruding larva -> think prevention
Guinea worm: filter water through cloth to prevent infection
NVD with diplopia, dysphonia, dysphagia
Botulism from preformed toxin
Leads to HUS
EHEC and shigella
Eat raw veggies and get obstructive jaundice
Fasciola hepatica - liver fluke
Seizures manifesting with weird things in the brain, history of eating the larval stage of something
Human cysticercosis - taenia sodium (pork tapeworm) I infection of the brain when you eat the larva
Cigarette burn lesions, aka a tach-noir eschar
Rickettsia infection (no eschar in Rocky Mountain spotted fever)
Food poisoning from deli meat and hot dogs
Listeria
Unilateral headache and jaw claudication in an old lady
Giant cell arteritis
Disease spread by body louse - think refugee camps
Epidemic typhus - Rickettsia prowazekii
Suspect anaplasma or erlichia?
Treat with doxycycline immediately - don’t wait for testing to confirm!
Toxic megacolon
Clostridium difficile
erythema migrans
Lyme disease - Borellia burgdorferi
Asian female <40 with weak radial pulses and arthritis
Takayasu arteritis
Marrow full of weird-looking megakaryocytes with staghorn nuclei
Essential thrombocytosis
HepB seropositive with purpura, neuropathy, hypertension
HepB associated polyarteritis nodosa
Rotten egg smelling diarrhea
Salmonella
CD30, CD15
Hodgkin lymphoma
Rash on Allopurinol therapy… What should you do?
STOP the drug! Vasculitis with toxic epidermal necrolysis, which is predictably BAD
Drug for most tick bites?
Doxy - give early because it can prevent life-threatening disease. Can even use as prophylaxis if you identify the tick as Ixodes scapularis
GI infections: afebrile, hemorrhagic diarrhea
EHEC - enterohemorrhagic E.coli
Hypercalcemia, renal involvement, anemia, bone lytic lesions/back pain
Multiple myeloma
Heliotrope rash
Dermatomyositis
rash with unknown cause: how do you assess?
wear gloves because it might be syphilis
MOA of azole drugs
For fungal infections -> inhibit ergosterol synthesis
Second line for pseudomonas
Ticarcillin and piperacillin
Tx for gout
Colchicine, NSAIDs or steroids, may lower uric acid with diet and lifestyle and XO inhibitors (allopurinol, febuxostat)
Nausea and vomiting 3-6 hours after eating, followed by diarrhea
Staph preformed toxin, clinical diagnosis, look for toxin in food
Tx for pseudogout (calcium pyrophosphate)
Joint injection with steroids, treat causes including hypomagnesia, hypophosphate, hypoPTH, etc
Diarrhea, rotten egg taste when you belch
Giardia
Elevated ANA threshold?
> 1:160
Foci of lymphatic infiltrate in minor salivary glands
Sjögren’s syndrome
ABX for atypical bacteria
Tetracyclines, macrolides, fluoroquinolones
Nonhealing ulcer with overhanging borders in a patient with chronic GI symptoms
Pyoderma gangrenosum
Shoulder and hip stiffness that responds quickly to prednisone
Polymyalgia rheumatica
Palpable purpura, low C4, false positive RF
Cryoglobulinemic vasculitis
Excess of cryoglobulins: monoclonal IgG and IgM
Cryoglobulinemic vasculitis I: hyperviscosity syndrome, with mucosal bleeding
Most severe malaria
Plasmodium falciparum
“Mechanic’s hands” with skin cracking, and interface dermatitis
Dermatomyositis
Penicillin allergy, pregnant, and has syphilis?
Desensitize and give penicillin
Cold-agglutinating polyclonal IgG and monoclonal IgM or IgA with false positive RF
Cryoglobulinemic vasculitis II
painful indurated veins, also referred to as migratory superficial thrombophlebitis
Trousseau’s sign, indicating adenocarcinoma, often of the pancreas
Loss of lactobacillus, overgrowth of ___ leads to bacterial vaginosis
Gardnerella
Oxidase positive GNR
Pseudomonas
GI infection: febrile hemorrhagic diarrhea
Shigella, Salmonella, Campylobacter, Yersinia, Entamoeba histolytica, Vibrio hemolytica
GI infection: febrile watery diarrhea
Salmonella, Campylobacter, EPEC, Yersinia
First line therapy for pseudomonas
Cefepime and ceftazadime
Auer rods - red lines in WBCs
AML (this is pathognomic!)
When are uricosurics contraindicated?
These drugs increase uric acid excretion so they are contraindicated in renal failure/compromised renal function.
Multiple eschars that are black with a white center after returning from travel
African tick bite fever - rickettsia africae
Soft cheese and unpasteurized dairy
Listeria, salmonella, campylobacter, EHEC, yersinia
P-ANCA with granulomatous necrotizing vasculitis and increased IgE
EGPA
Disorders that may be associated with JAK2 mutations
Polycythemia vera; Essential thrombocytosis; Primary myelofibrosis
Watery diarrhea with exposure to reptiles (turtles)
Salmonella - dx from stool culture
Diarrhea, exposure to puppy
Campylobacter
Osteomyelitis in a patient with Sickle Cell Disease
Salmonella
Prevention of Haemophilus influenzae B
Immunization and give rifampin to exposed kids
Infection associated with acute rejection of transplanted organs
CMV
What organisms are you susceptible to without a functioning spleen?
Encapsulated organisms, especially S.pneumo, N.meningitidis, and HiB, but also Babesia, Plasmodium, Capnocytophaga
Snake-like rash
Strongyloides stercoralis
Diagnostic criteria for acute leukemias
Greater than or equal to 20% blasts, OR evidence of a recurrent cytogenetic abnormality associated with AML
perineal and facial red rash
acrodermatitis enteropathica, from zinc deficiency
Tx for strongyloides
Ivermectin
High N:C ratio, clear spots indicative of nucleoli, fine chromatin
Blast cell
More than one ring stage within RBC
Plasmodium falciparum
Drugs for CMV
Valgancyclovir, ganciclovir, foscarnet, cidofovir
Anemia risk with CML: what type is most likely?
Autoimmune hemolytic anemia
Paravertebral mass staining positive for lambda or kappa light chains
Plasmacytoma
Most common persistent watery diarrhea cause in AIDS patients
Cryptosporidium
Diagnostic test for neurocysticercosis
Immunoblot assay or rarely biopsy demonstrating larva in brain tissue
You find a plasmacytoma- what’s the next step?
Bone marrow biopsy to look for multiple myeloma
Banana-shaped gametocytes
Plasmodium falciparum
Low peripheral blood counts of one or more lineages, with hypercellular marrow for age
Myelodysplastic syndrome
High N:C ratio with darker clumpy chromatin
Lymphocyte (not a blast)
Eosinophilic lines that look kind of crystalline found in some cells with visible nucleoli and fine chromatin
Auer rods, indicative of AML
Increased PMNs and band cells
Reactive neutrophilia
Greatly increased granulocytes, including basophils and eosinophils; increased myelocytes, increased metamyelocytes
CML
Hypercellular marrow full of myeloid cells and micromegakaryocytes
Seen in CML and myelodysplastic syndromes
Erythrocytosis with low EPO levels, may be associated with thrombocytosis and mild neutrophilia
Polycythemia Vera
Key feature distinguishing polycythemia vera from secondary polycythemia
Low EPO in PV
Bone marrow biopsy finding in Polycythemia Vera
Hypercellular with increases in all lineages
High PLTs without erythrocytosis or leukocytosis - rule out anemia, inflammation, and other malignancies
Essential thrombocytosis
Teardrop RBCs and megakaryocytes with cloud-like nuclei
Primary myelofibrosis
Monosomy 7; 5q deletion, trisomy 8
Myelodysplastic syndrome
Intrinsic pathway of apoptosis
Bcl2 leads to activation of caspases via cytochrome C
Extrinsic pathway of apoptosis
Mediated by Fas ligand, leads to activation of caspases
RFs for endocarditis
Abnormal valve, turbulent flow, any way that bacteria can get in!
Definition: defensins
Proteins that punch holes in bacterial cell walls - cleaved to active forms, and are very positively charged. Work based on electrostatic charges to enter membranes and make holes
Definition: histatins
Cationic proteins in oral cavity designed to kill fungi
C-type lectins
Proteins produced in gut, lead to pore formation in pathogens
Panniculitis
Inflammation of subcutaneous fat
Alternative complement pathway
C3 is hydrolyzed, activates cascade by auto-cleaving into C3bBb with help of factor B. This is a C3 convertase and leads to opsonization and signaling
C1 inhibitor deficiency
Hereditary angioedema
CD59 or CD55 deficiency (GPI-linked proteins)
Paroxysmal Nocturnal Hemoglobinuria
Drug treatment for Paroxysmal Nocturnal Hemoglobinuria
Anti-C5 Ab
Nitroblue Tetrazolium test (NBT test)
Turns blue in presence of ROS, so used to diagnose Chronic Granulomatous Disease
Antigen-presenting cells of the skin
Langerhans cells
Cancer of stratum basale
Basal cell carcinoma
Uncomplicated pyelonephritis Tx
Levofloxacin, ciprofloxacin, or TMP-sulfa outpatient with close follow-up
IV ceftriaxone or an aminoglycoside inpatient
Proteins linking keratinocytes
Desmosomes, linked by desmogleins (Dsg1, Dsg3)
Layer of skin containing profillagrin and keratin, as well as hydrolases and natural moisturizing factors
Stratum granulosum
Protein stabilizing stratum corneum
Fillagrin
Osler nodes (swollen and tender distal digits)
Immunologic finding in endocarditis
Autosomal dominant fillagrin mutation
Ichthyosis vulgaris
Defective keratinization causing hard, plate-like scaling of skin and cracks and breaks
Lamellar ichthyosis
Tiny waxy papules, AD inheritance
Punctuate keratoderma
GNRs implicated in endocarditis
HACEK - haemophilus, agregatibacter, cardiobacterium, eikenella, kingella
Rank emollients by oil content: cream, lotion, ointment
Ointment > cream > lotion. Ointments may feel greasy but are most protective. Lotions are less protective but more elegant.
Extracellular matrix composition in dermis
Collagen, elastin, fibrillin. Fewer cells.
GP cocci causing endocarditis
1 S. Aureus, also coagulase-negative staph
Asymptomatic bacteruria <1month post-renal transplant?
Treat with fosfomycin
Patient with history of valve defect… At risk for?
Infective endocarditis
Collagen disorder with stretchy/fragile skin, wide scars, stretchy joints
Ehlers-Danlos type I
Defective lipid barrier disorder of the skin that can be fatal without adequate treatment
Harlequin ichthyosis
Libman-Sacks endocarditis
SLE!
Smaller vegetations, murmur 85%, insidious course, abnormal valve
Subacute bacterial endocarditis
Splinter hemorrhages in nail beds, Janeway lesions on soles of feet, subconjunctival hemorrhage, retinal hemorrhage (Roth spots), petechiae
Embolic symptoms of infective endocarditis
Dental procedures, mouth lesions, GI trouble, and endocarditis
Viridans strep - strep mutans
Drugs that can lead to drug-induced lupus
Hydralazine, Procainamide, Isoniazid
Colon lesions, colon cancer, stool changes, and endocarditis
Strep gallolyticus
1 cause of acute bacterial endocarditis in all risk groups
S. Aureus
GI, GU, UTI problems and endocarditis
Enterococcus faecalis
Asymptomatic bacteruria in a pregnant woman?
Treat with fosfomycin (avoid nitrofurantoin in first trimester)
Major Duke criteria
blood cultures positive (3 sets obtained, 2/3 are positive); echocardiogram is positive (transthoracic, then transesophageal)
Replicating cuboidal layer of epithelium
Stratum basale
S. Aureus growing in urine?
Probably not bacteruria from a UTI… Substantial chance this is due to systemic bacteremia, so check it out!!
When to do dental prophylaxis with ABX
Prosthetic valve, known abnormal valve, Hx of transplant, previous endocarditis, other serious risk factors
Histology reveals split below basal layer of epidermis, with linear deposition of C3 and IgG at basement membrane zone, from antibodies to BPAG1 and BPAG2
Bullous pemphigoid
2 cause of uncomplicated UTI
Staph saprophyticus (honeymoon cystitis)
Anti-inflammatory, pro-fibrotic cytokine
TGFbeta
ABX that block transpeptidase crosslinking of peptidoglycan in cell walls by interfering with PBPs (broad category)
Beta-lactams
Fissures and dry scale caused by dehydration, lack of natural moisturizing factors, lack of intercellular lipids, etc
Xerosis (dry skin)
ABX options for uncomplicated cystitis
Nitrofurantoin (normal kidney function)
Fosfomycin or TMP-sulfa if <20% local resistance
Avoid fluoroquinolones
Large vegetations, murmur 50% of time, rapid onset, high fever, normal valve
Acute bacterial endocarditis
Criteria for suspecting sepsis: qSOFA
Systolic BP at or below 100, RR at 22 or above, altered mentation (GCS<15) - 2 out of 3 with suspicion of infection.
3 cause of uncomplicated UTI
Other GN bacteria
Thickened areas of skin over pressure points, AD inheritance
Focal keratoderma
Autoantibody in mixed connective tissue disease
U1-RNP
Lectin complement pathway
Mannose binding lectin recognizes carbohydrates on pathogen, activates cascade, leading to formation of C3 convertase, etc.
AD fibrillin mutation presenting with tall height, long limbs, mitral valve prolapse, aortic dissection, stretchy
Marfan’s syndrome
Keratinocytes starting to flatten out in this layer
Stratum spinosum
Classical complement pathway
C1q binds to Ab (usually IgM), activates cascade by recruiting C1r and C1s -> cleaves C2, C4 forming C3 convertase, leading to C3b and C5b opsonization of pathogens
Smith Ab/anti-dsDNA
SLE
Granular IgG deposition in glomeruli suggests…
Type III hypersensitivity - immune complex deposition (SLE, post-strep glomerulonephritis)
Cannot extend a blister by pulling laterally
Negative Nikolsky sign: subepidermal split
Cuts, boils, skin infections, IV drug use, and endocarditis
S. Aureus
Antibodies with centromere staining pattern, Scl-70
Scleroderma
Anti-Scl70 is the antibody against…
DNA topoisomerase I
Immunofluorescence of glomeruli in lupus nephritis
Granular pattern of IgG deposition
Autosomal recessive disease with widespread blistering and scarring that may be deadly; involves lack of laminin and BPAG2
Junctional EB
1 therapy for T.pallidum
Penicillin
Increased cancer risk in Sjogren’s
Lymphoma
Pattern of immunofluorescence in Goodpasture disease
Linear IgG deposition
Polyclonal B and T cells infiltrating salivary gland
Sjögren’s syndrome
TdT+ blasts without surface Ig but with CD19 (probably)
B cell ALL
Papules and vesicles on extensors, very pruritic, with IgA at the tips of dermal papillae
Dermatitis herpetiformis
Histology showing fibrotic thickening of skin
Probably scleroderma
Watermelon stomach
Telangiectasias of stomach in scleroderma
Centromere pattern - 30-60 small dots on ANA test
Specific for systemic sclerosis
“Starry sky” LN biopsy with lots of tingible body macrophages
Burkitt’s lymphoma (t(8;14), Myc-Ig heavy chain)
Hands fixed into claw-like positions due to deposition of fibrous tissue
Sclerodactyly
Vasculitis of arteries above the base of the skull
Giant cell arteritis
Autoantibody that’s highly suggestive of polymyositis/dermatomyositis
Jo-1
Which of the following can resolve spontaneously: bullous pemphigoid, pemphigus vulgaris, or cicatricial pemphigoid?
Bullous pemphigoid - can resolve spontaneously or be treated with oral minocycline
Giant cell arteritis suspected… What to do next?
Steroids emergently, before biopsy comes back
Can lab findings alone diagnose UTI?
No! You need the clinical context
Molecules causing degradation in tissue remodeling
Matrix metalloproteases
Gash in skin from a sharp force injury, with tissue divided to the depth of the wound
Incision or stab
Bug associated with 30% of cases of polyarteritis nodosa
Hepatitis B
This step of scar formation is characterized by lots of new vasculature, loose collagen, fibroblasts, and background macrophages
Granulation tissue
Factors involved in angiogenesis and pericyte detachment
ANG1/ANG2, with Notch signaling regulating branching pattern
Factor inducing endothelial cell migration and proliferation
VEGF-A
Vasculitis with c-ANCA
Granulomatosis with polyangiitis (GPA)
Thickened area of skin over whole palm or sole, AD inheritance
diffuse keratoderma
1 cause of uncomplicated cystitis
E. Coli
Minimal tissue loss, small or sutured wound: Healing by _____ intention
Healing by first intention
Large, open wound with extensive tissue loss: Healing by _____intention
Healing by second intention (think large amounts of wound contraction, like in diabetic foot ulcers)
Cat bite infection
Pasturella multocida
Gash in skin from a blunt force injury, with tissue bridging across the gap
Laceration
Row of tombstones on histology
Pemphigus vulgaris: split between stratum basale and stratum spinosum
Life-threatening organ dysfunction from dysregulated host response to infection
Sepsis
Complicated cystitis causative factors
E. Coli but also pseudomonas, more gram positives
Flat lesion >0.5 cm
Patch
Human bite infection (think bar fight!)
Eikenella corrodens
Organism that forms opportunistic infections in burns
Pseudomonas
Infection of traumatic open wound, causing severe tissue destruction
Clostridium perfringens
Definition of septic shock
Vasopressors required to keep MABP at or above 65 AND serum lactate >2 without hypovolemia
Pulmonary HTN in an autoimmune disease
Probably systemic sclerosis
In a septic patient, when does organ dysfunction actually develop?
Before blood pressure drops, frequently - occurs when microvascular abnormalities like thrombin occur, which frequently takes place before patients become hypotensive.
SSA Ro/SSB La
Sjogren’s Syndrome
Management of sepsis
1) Emergent vascular access and fluid resuscitation
2) Draw blood cultures but give broad-spectrum ABX within one hour!!!
This microbiome technique looks at the 16s subunit of bacterial ribosomes, and can be performed from samples or isolates, but takes a while and is labor-intensive.
Gene sequencing of rRNA
Small flat lesion <0.5 cm
Macule
Intracellular proteins involved in the hemidesmosome
BPAG1, BPAG2, integrins
Pruritic, purple, polygonal papules and plaques found on wrist, in mouth, on genitals, may koebnerize
Lichen planus
Viable bacteria in the blood
Bacteremia
Protein that traverses the lamina lucida of the basement membrane zone of the epidermis
BPAG2
Proteins that make up the lamina densa
Laminin 5, collagen IV
Painful mucosal erosions, especially on oral mucosa; flaccid blisters and erosions on skin; antibodies against Dsg3
Pemphigus vulgaris
Can extend a blister pulling laterally
Positive Nikolsky sign: bulla or vehicle is epidermal
Granulomatous of aortic arch or its branches
Takayasu arteritis
Pemphigus vulgaris immunofluorescence
IgG and C3 throughout entire epidermis, from antibody against Dsg3
Describe pathology findings in cicatricial pemphigoid
Looks like bullous pemphigoid, with subepidermal split below the basal layer and linear IgG and C3 at the BMZ. Ab against BPAG2 and laminin 5
Tx for pemphigus vulgaris, cicatricial pemphigoid
Topical corticosteroids, oral corticosteroids, may add immunosuppressants
Geometric pattern of papules, plaques, vesicles that occur without family history of atopy, and with specific activity or exposure
Allergic contact dermatitis
Tense adherent bullae or vesicles on an erythematous base, often presenting as new-onset itching in an elderly patient
Bullous pemphigoid
Autosomal dominant disease characterized by blisters on extremities including palms and soles presenting with mechanical stress, involving Keratins 5 and 14
EB simplex
AD or AR disease (AR more severe) involving lack of or abnormal collagen VII, leading to severe scarring and deformity
Dystrophic EB
Rash associated with celiac disease
Dermatitis herpetiformis
Antibodies to check in dermatitis herpetiformis
Look for anti-gliadin and anti-tissue transglutaminase antibodies
Symmetric rash on extensors, buttocks, occipital scalp associated with GI involvement on biopsy
Dermatitis herpetiformis
Plaques on scalp, extensor surfaces, etc with thin silvery “micaceous” scale, sharply circumscribed, not particularly itchy
Psoriasis
Plaques on flexor surfaces, more irregular with an indistinct border, very pruritic, may have excoriations, may have some white scale or serous crusting
Eczema (atopic dermatitis)
CREST syndrome: Calcinosis, Reynaud’s, esophageal dysmotility, sclerodactyly, telangiectasias
Form of limited scleroderma, associated with anti-centromere antibody.
Atopic triad
Asthma, allergic rhinitis, atopic dermatitis
Vasculitides with p-ANCA
EGPA, MPA
Patient with pityriasis alba may have a predisposition towards ___
Atopic dermatitis
Redness, scaling, and sclerosis as a response to chronic leg edema
Stasis dermatitis
This microbio technique identifies isolates based on protein content, and is quick and easy to perform, but does require enough biomass from the isolate.
Mass spectrometry (MALDI-TOF)
Factors contributing to poor wound healing
Vitamin C deficiency, steroids (decreased TGF-beta), infection, diabetes (vascular compromise but also decreased TGF-beta, increased infection, neutrophil dysfunction, neuropathy)
Shark bite, seafood/saltwater injury
Vibrio vulnificans
Dog bite infection
Capnocytophaga canimorsus
Technique for escaping adaptive immunity
Antigenic variation