13 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
lesion parallel to lines ... - Differential diagnosis ... nummular eczema, tinea ... rosea #clinical #dermatology ... #photo #PhysicalExam
Muehrcke's Lines (Leukonychia striata)
Narrow while transverse lines (Not depressed, compared to Beau's lines). Usually 2 or
Muehrcke's Lines ... while transverse lines ... #Fingernails #PhysicalExam ... #Clinical #Photo ... #Sign
Transverse lines of the fingernails. (A) Beau’s lines (arrows) of the thumbnail. (B) Mees’ lines (arrowheads)
Transverse lines ... (A) Beau’s lines ... are a typical sign ... Ridges #Clinical #PhysicalExam ... #Photo
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
radiocapitellar lines ... anterior sail sign ... radiocapitellar line ... can't make A-OK sign ... Radiology #XRay #Diagnosis
Scarlet fever
• Delayed-type skin reactivity to pyrogenic exotoxin Requires prior exposure
• Diffuse erythematous eruption that generally
tongue - Pastia lines ... = petechial lines ... Scarlet #fever #diagnosis ... #clinical #photo ... #signs #symptoms
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
the most common elbow ... commonly missed elbow ... radiocapitellar lines ... anterior sail sign ... Radiology #XRay #Diagnosis
Mees' Lines
Transverse while lines (usually one per nail, no depressions) that often can will disappear if
Mees' Lines Transverse ... while lines (usually ... #PhysicalExam # ... Clinical #Photo ... #Sign #Arsenic #
Beau's Lines

Transverse depressed ridges seen in severe infection, MI, hypotension/shock, hypocalcemia, post-surgical, malnutrition and with certain
Beau's Lines ... #Beaus #Lines #Fingernails ... #PhysicalExam # ... Clinical #Photo ... #Sign
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
- Differential Diagnosis ... silvery scale on elbows ... Auspitz sign, Koebner's ... Herald's atch • Tinea ... Papulosquamous #SkinRash #dermatology
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Moccasin-variety Tinea ... Diagnosis? ... around demarcation line ... type #clinical #photo ... #foot #dermatology