1641 results
Allergic Contact Dermatitis 
- Erythematous, indurated, scaly plaques 
- T-cell mediated, delayed-type hypersensitivity response to exogenous
plaques - T-cell ... Allergic #Allergy #Dermatology ... #Rash #Skin
Erythroderma - Diagnostic Algorithm. Pathophysiology: 1) Extensive cutaneous capillary dilation, results in widespread exfoliation of the
germinative skin cells ... Skin-homing T-cells ... #Diagnosis #Dermatology ... #Rash #Erythroderma
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... Maculopapular rash ... syndrome • Giant cell ... vasculitis #Dermatologic ... #rash #diagnosis
Idiopathic Inflammatory Myopathies (IIM's)

RASH + MUSCLE WEAKNESS → Consider idiopathic inflammatory myopathies (IIM's)

 • Overlap Myositis
Myopathies (IIM's) RASH ... minimal inflammatory cell ... #rheumatology #dermatology ... #Myopathy #Rash
Rickettsialpox Eschar

40 homeless male from NY admitted with fever, chills, headache, myalgias. Diagnosis?
Rickettsialpox R akari classic
fever, vesiclar rash ... Rash appears 3-4d ... not endothelial cells ... infections vesicular rash ... photo #skinrash #dermatology
Acute Generalized Exanthematous Pustulosis (AGEP)

AGEP is largely a clinical diagnosis based on classical skin findings in
development is a T-cell-mediated ... ) and pustular rash ... Elevated white blood cell ... The rash can be ... Exanthematous #Pustulosis #Dermatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... • Erythematous rash ... CD4+ and CD8+ T cell ... #rheumatology #dermatology
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
of inflammatory cells ... Generalized itchy rash ... Differential #Diagnosis #Dermatology
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
allow red blood cells ... brown tint of the rash ... differential #diagnosis #dermatology
Generalized Algorithm for the Evaluation of Dermatologic Processes - Branches: Erythroderma Petechial Fluid-Filled Maculopapular 

#Diagnosis #Dermatology
Evaluation of Dermatologic ... #Diagnosis #Dermatology ... #Rash #Erythroderma