Obesity, diabetes mellitus, immunosuppression, a history of atopy, and hyperhidrosis are risk factors. All age groups may be affected, but incidence increases with age. The highest incidence is seen in regions of high humidity, especially in the tropics.
L08.1 – Erythrasma
238418005 – Erythrasma
Differential Diagnosis & Pitfalls
- Inverse psoriasis
- Seborrheic dermatitis
- Tinea corporis
- Acanthosis nigricans
- Contact dermatitis
- Tinea versicolor
- Pityriasis rotunda
- Confluent and reticulated papillomatosis
- May present as granulomatous plaques in immunocompromised patients.
- Condyloma lata of secondary syphilis