Classic Presentations Flashcards
Gout, intellectual disability, self-mutilating behavior in a boy
Lesch-Nyham Syndrome (HGPRT deficiency; XLR)
Situs inversus, chronic sinusitis, bronchiectasis, infertility
Kartagener Syndrome (primary ciliary dyskinesia); (dynein arm defect involving cilia)
Blue sclera
Osteogenesis Imperfecta (type I collagen defect)
Elastic skin, hyper mobility of joints, increased bleeding tendency
Ehlers-Dalos syndrome (type V collagen defect, type III collagen defect seen in vascular subtype of ED)
Arachnodactyly, upward lens discoloration, aortic dissection, hyperflexible joints
Marfan Syndrome (fibrillar defect)
Café-Au-Lait spots (unilateral), polyostotic fibrous dysplasia, precocious puberty, multiple endocrine abnormalities
McCune-Albright syndrome (mosaic G-protein signaling mutation)
Calf pseudohypertrophy
Muscular Dystrophy (usually Duchenne, due to XLR frameshift mutation of dystrophin gene)
Child uses arms to stand up from squat
Duchenne Muscular Dystrophy (Gower’s sign)
Slow, progressive muscle weakness in boys
Becker Muscular Dystrophy (XL missense mutation due to dystrophin
Infant with cleft lip/palate, microcephaly or holoprosencephaly, polydactyly, cutis aplasia
Patau Syndrome (trisomy 13)
Infant with microcephaly, rocker-bottom feet, clenched hands, and structural heart defect
Edwards Syndrome (trisomy 18)
Single palmar crease
Down Syndrome
Dilated cardiomyopathy, edema, alcoholism, or malnutrition
Wet beriberi (thiamine (vitamin B1) deficiency)
Dermatitis, dementia, diarrhea
Pellagra (niacin (vitamin B3) deficiency)
Swollen gums, mucosal bleeding, poor wound healing, petechiae
Scurvy (vitamin C deficiency); can’t hydroxylate proline/lysine for collagen synthesis
Chronic exercise intolerance with myalgia, fatigue, painful cramps, myoglobinuria
McArdle Disease (skeletal muscle glycogen phosphorylase deficiency)
Infant with hypoglycemia, hepatomegaly
Cori disease (debranching enzyme deficiency) or Von Gierke (G-6-phosphatase deficiency; more severe)
Infantile hypertrophic cardiomyopathy (myopathy), exercise intolerance
Pompe Disease (lysosomal a-1,4-glucosidase deficiency)
Cherry red spots on macula
Tay Sachs (ganglioside accumulation) or Riemann-Pick (sphingomyelin accumulation), central retinal artery occlusion
Hepatosplenomegaly, pancytopenia, osteoporosis, aseptic necrosis of femoral head, bone crises
Gaucher disease (glucocerebrosidase deficiency)
Achilles tendon xanthoma
Familial Hypercholesterolemia (decreased LDL receptor signaling)
Anaphylaxis following blood transfusion
IgA Deficiency
Male child with recurrent infections, no mature B cells
Bruton Disease (X-Linked Agammaglobulinemia)
Recurrent cold (non inflamed abscesses, unusual eczema, high serum IgE)
Hyper IgE Syndrome (Job Syndrome); neutrophil chemotaxis abnormality
Strawberry tongue
Kawasaki Disease, Scarlet Fever
Adrenal hemorrhage, hypotension, DIC
Waterhouse-Friderichsen Syndrome (meningococcemia)
Red “current jelly” sputum in alcoholic or diabetic patients
Klebsiella Pneumoniae Pneumonia
Large rash with bulls eye appearance
Erythema Chronicum Nigrans from Ixodes tick bite (Lyme disease: Borrelia)
Indurated, ulcerated genital lesion
Non-painful: chancre (primary syphilis, T. Pallidum); Painful with exudate: chancroid (Haemophilus Ducreyi)
Pupil accommodates but doesn’t react
Neurosyphilis (Argyll Robertson pupil)
Smooth, moist, painless, wart-like white lesion on genitals
Condylomata lata (secondary syphilis)
Fever, chills, headache, myalgia following antibiotic treatment for syphilis
Jarisch-Herxheimer reaction (rapid lysis of spirochetes results in endotoxin-like release)
Dog or cat bite resulting in infection
Pastourelle Multocida (cellulitis at infection site)
Rash on palms and soles
Cocksackie A, Secondary Syphilis, RMSF
Black eschar on face of patient with diabetic ketoacidosis
Mucor or Rhizopus infection
Chorioretinitis, hydrocephalus, intracranial calcifications
Congenital Toxoplasmosis
Fever, cough, conjunctivitis, coryza, diffuse rash
Measles
Small, irregular red spots on buccal/lingual mucosa with blue-white centers
Kopek spots (measles = rubeola virus)
Back pain, fever, night sweats
Pott Disease (vertebral TB)
Child with a fever later develops red rash on face that spreads to body
Erythema Infectiosium (Fifth Disease = “Slapped Cheek”; parvovirus B19)
Abdominal pain, diarrhea, leukocytosis, recent antibiotic use
C. difficile infection
Bounding pulses, wide pulse pressure, diastolic heart murmur, head bobbing
Aortic regurgitation
Systolic crescendo-decrescendo ejection murmur
Aortic stenosis
Continuous machine-like murmur
PDA (close with indomethacin, keep open with PGE analogs)
Chest pain on exertion
Angina (stable: with moderate exertion; unstable: with minimal exertion or at rest)
Chest pain with ST depressions on ECG
Angina (negative troponins) or NSTEMI (positive troponins)
Chest pain, pericardial effusion/friction rub, persistent fever following MI
Dressler syndrome (autoimmune-mediated post-MI fibrinous pericarditis, 2 weeks to several months after acute episode)
Painful, raised red lesions on pads of fingers/toes
Osler nodes (infective endocarditis, immune complex deposition)
Painless erythematous lesions on palms and soles
Laneway lesions (infective endocarditis, septic emboli/microabscesses)
Splinter hemorrhages in fingernails
Bacterial endocarditis
Retinal hemorrhages with pale centers
Roth spots (bacterial endocarditis)
Distant heart sounds, distended neck veins, hypotension
Beck triad of cardiac tamponade
Cervical LAD, desquamating rash, coronary aneurysms, red conjunctivae and tongue, hand-foot changes
Kawasaki Disease (treat with IVIG and aspirin)
Palpable purpura on buttocks/legs, joint pain, abdominal pain (child), hematuria
Henoch-Schonlein Purpurs (IgA vasculitis affecting skin and kidneys)
Telangiectasias, recurrent epistaxis, skin discoloration, arteriovenous malformations, GI bleeding, hematuria
Hereditary Hemorrhagic Telangiectasia (Osler-Weber-Rendu Syndrome)
Skin hyperpigmentation, hypotension, fatigue
Primary Adrenocortical Insufficiency (eg: Addison Disease), causes increased ACTH and increased a-MSH production