16 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... Diagnosis Algorithm ... RA, Sjogren's, GPA ... #Causes #dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Rarely dominate the clinical ... Maculopapular rash ... reticularis Differential ... #dermatology #rash
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... - Differential ... bullae on palms soles ... Reactive #SkinRash #dermatology ... #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... Hypercoagulable States ... #Diagnosis #hematology ... #nonpalpable #dermatology
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas Tree Rash ... - Differential ... diagnosis: secondary ... Pityriasis #rosea #clinical ... #dermatology #photo
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... vasculitis (5%): PAN > GPA ... signs #lesions #diagnosis ... #clinical #manifestations ... pathology #lesions #differential
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
rapidly evolving rash ... months temperate zones ... immunosuppressive meds ... #cellulitis #dermatology ... #legs #clinical
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
contagious of all the stages ... latent and late stages ... resembling rashes caused ... #Diagnosis #Clinical ... #Photo #Dermatology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash ... - Differential ... Diagnosis Algorithm ... Papulosquamous #SkinRash #dermatology ... #causes
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
fires, heating pads ... Haverhill fever caused ... Rash is usually ... comparison #table #differential ... #diagnosis #dermatology