step 2 - visual identification

pt w/ 1 month diarrhea, abd cramps, nausea, night sweats, nontender lympadenopathy, arthralgias, weight loss. pink, oval lesions (see pic) on upper chest, neck, face at the beginning of illness but have resolved.

HIV

smudge cells (pathognomonic for CLL)

erythematous, tender nodules

histoplasmosis

noncaseating granulomas on LN biopsy

cheeks, chest → abdomen, back, extremeties

fever, runny nose

chicken pox (varicella zoster)

auer rods → AML

firm, domed papule with central umbilication

molluscum contagiosum

collier sign/bilateral eyelid retraction

also w/ light-near dissociation (pupils reactive to accommodation but not light), limitation of upward gaze

parinaud syndrom/dorsal midbrain

pinealoma in kids

dyspnea, hypocia, reticulonodular opacities

hiv+

pneuocystis pnuemonia

tx with trimeth-sulfa

dry, erythematous, sharply-demarcated rash

diarrhea, depressive symptoms

pellagra (niacin/b3 deficiency)

small (<2cm) round lucency with sclerotic margin

pain worse at night, improves with nsaids

spinal osteoid osteoma - unmineralized osteoid that produces prostaglandins

small (<2cm) round lucency with sclerotic margin

pain worse at night, improves with nsaids

osteoid osteoma - unmineralized osteoid that produces prostaglandins