Spontaneous Skin Lesions: The Importance of Differential Diagnosis

Abstract

Dermatofitosis are cutaneous infections caused by fungus. They affect the keratinized surface layers epidermis, hair and nails. We report a case of a 42-year-old female patient who presented with erythematous annular lesions with a raised edge on the chest, back, neck, hands and arms. These lesions were compatible with erythema multiforme, subacute lupus and/or ringworm infection. The biopsy of lesions was done and the study showed the structures suggestive of fungi in hematoxylin-eosin staining. They were confirmed by PAS staining, starting antifungal treatment for 4 weeks with complete resolution of lesions.