11 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... amoxicillin) Oral ... #Differential #Diagnosis ... #Dermatology #SkinRash
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
- Differential Diagnosis ... • Pemphigus vulgaris ... Ulcers #ulcerative #skinrash ... #dermatology #Differential ... #causes
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
- Differential Diagnosis ... • Pemphigus vulgaris ... Vesiculobullous #SkinRash ... #dermatology #Differential ... #causes
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
- Differential Diagnosis ... face: • Acne Vulgaris ... #Pustular #SkinRash ... #dermatology #Differential ... #causes
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
dermatophyte infection Caused ... erythematous Diagnosis ... antifungals • Oral ... Tinea #Versicolor #Dermatology ... #SkinRash #Diagnosis
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
Oral Skin Ulcers ... • Pemphigus vulgaris ... #mouth #SkinRash ... #dermatology #Differential ... #causes
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
- Differential Diagnosis ... Pityriasis Rosea - Oval ... Papulosquamous #SkinRash ... #dermatology #Differential ... #causes
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
psoriasis, psoriasis vulgaris ... • A clinical diagnosis ... Rule out other causes ... palmoplantar pustulosis: oral ... #Dermatology
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
Lymphocytes - T or B lineage ... ALL is of B-cell lineage ... Neutrophils • Immature/Myeloblasts ... #Leukemia #Hematology ... #Oncology #Diagnosis
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Haverhill fever caused ... Well-circumscribed roundish-oval ... PrathitKulkarni #Erythemas #comparison ... #differential #diagnosis ... #dermatology #compared