3621 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 ... Nodosum #Mnemonic #Causes ... Differential #Diagnosis #Dermatology
Kerion
Raised, boggy lesion with heaped up purulent nodules 
Caused by host's response to a fungal ringworm
purulent nodules Caused ... Lymphadenopathy Treatment: Oral ... Griseofulvin #Kerion #Dermatology
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
dermatophyte infection Caused ... antifungals • Oral ... Tinea #Versicolor #Dermatology
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
Oral Skin Ulcers ... pemphigoid #Oral ... mouth #SkinRash #dermatology ... Diagnosis #Algorithm #causes
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... GPA causes disease ... the joints • Oral ... vasculitis #Dermatologic ... Polyangiitis #GPA #dermatology
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Mucous patches on oral ... genital, anal or oral ... resembling rashes caused ... Clinical #Photo #Dermatology
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
- Drugs • Oral ... HairLoss #Alopecia #dermatology ... Diagnosis #Algorithm #causes
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
- Drugs • Oral ... HairLoss #Alopecia #dermatology ... Diagnosis #Algorithm #causes
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
dermatophytes cause ... fail requiring oral ... #photo #foot #dermatology
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
canimorsus normal oral ... dogs & latter can cause ... gram-negative bacillus cause ... Canimorsus #Skin #Rash #dermatology