10 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas Tree Rash ... parallel to lines of skin ... Differential diagnosis: secondary ... nummular eczema, tinea ... #dermatology #photo
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Infectious • Tinea ... decalvans - Secondary ... to Skin Disease ... Shafts • Tinea ... Diagnosis #Algorithm #causes
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... in primary or secondary ... infection - RMSF - Henoch ... Urinalysis • Fecal ... cryoglobulins • Skin
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Rash Secondary ... Skin rash and malaise ... ▪ “Rash” (75% ... resembling rashes caused ... #Clinical #Photo
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... dermatophytes cause ... covering the foot, hence ... skin of inflamed ... type #clinical #photo
Focal / Localized Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 - Infectious
Focal / Localized ... Infectious • Tinea ... to Skin Disease ... Shafts • Tinea ... Diagnosis #Algorithm #causes
Acute Purpura Fulminans Skin Rash on Physical Exam 
60 year old male ITP s/p splenectomy 
1d
Purpura Fulminans Skin ... rigors, diarrhea, nausea ... purpura fulminans secondary ... Purpura #Fulminans #Skin ... #photo
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Herald's atch • Tinea ... central clearing • Secondary ... Diagnosis #Algorithm #causes
The Stages of Syphilis 

Primary Syphilis 
- The chancre lesion is the hallmark of primary syphilis.
Secondary Syphilis ... - Rash, pink ... soles in 50% of cases ... rashes, including tinea-mimicker ... granuIomas on skin
Monkeypox Skin Rash
30 yr F and her 6 yr daughter purchased 2 prairie dogs 10 days
Monkeypox Skin Rash ... for research, hence ... monkeypox.’ 1st human case ... vesicles→pustules→crusts ... SkinRash #clinical #photo