13 results
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Systemic and Primary Causes ... = Primary Skin Lesions ... No Primary Skin Lesion ... Pruritus #primary #secondary ... #generalized #dermatology
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
- long axis of lesion ... palms/soles - Differential ... diagnosis: secondary ... rosea #clinical #dermatology ... #photo #PhysicalExam
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... hemorrhagic skin lesions ... leakage of RBC's secondary ... #Diagnosis #hematology ... #nonpalpable #dermatology
Genital Lesions - Differential Diagnosis Algorithm
Elevated - Vesicles:
 • Herpes simplex
Elevated - Papules / Plaques -
Genital Lesions ... - Differential Diagnosis ... acuminata) • Secondary ... #skinlesions #dermatology ... Diagnosis #Algorithm #causes
Secondary Syphilis - Rash on Palms and Soles 
41ys, seen in our ED b/c of 20
Typical lesions ... present in 80% of cases ... clinical #photo #dermatology ... #Palms #Soles #dermatology ... #physicalexam
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
(Ring- shaped) lesion ... central clearing • Secondary ... Papulosquamous #SkinRash #dermatology ... #Differential # ... Diagnosis #Algorithm #causes
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... reddish-purple lesions ... in primary or secondary ... #dermatology #physicalexam
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Scaly/Erythematous lesions ... Secondary to venous ... Eczematous #SkinRash #dermatology ... #Differential # ... Diagnosis #Algorithm #causes
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Diffuse and Focal) Differential ... decalvans - Secondary ... HairLoss #Alopecia #dermatology ... #Differential # ... Diagnosis #Algorithm #causes
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Polycythemia - Differential ... an underlying cause ... Better call hematology ... #Polycythemia #Differential ... Algorithm #workup #hematology