Erythrasma - Anogenital in
The highest incidence is seen in regions of high humidity, especially in the tropics. Obesity, diabetes mellitus, immunosuppression, a history of atopy, and hyperhidrosis are risk factors. All age groups may be affected, but incidence increases with age.
L08.1 – Erythrasma
238418005 – Erythrasma
Differential Diagnosis & Pitfalls
- Many cases are misdiagnosed as tinea cruris due to using inappropriate diagnostic methods. The lesions of tinea cruris have a more prominent scaly border, and presents often with pustules.
- Inverse psoriasis
- Seborrheic dermatitis
- Acanthosis nigricans
- Allergic contact dermatitis
- Lichen simplex chronicus
- Irritant contact dermatitis
- Familial benign pemphigus (Hailey-Hailey disease)
- Squamous cell carcinoma in situ
- Extramammary Paget syndrome
- Condyloma lata of secondary syphilis