Reactive infectious mucocutaneous eruption: An uncommon dermatological manifestation of Mycoplasma pneumoniae: a case report

Mycoplasma pneumoniae is a common respiratory pathogen that causes a wide range of clinical manifestations, from mild upper respiratory tract infections to severe atypical pneumonia. Besides its pulmonary involvement, it can cause several extra-pulmonary complications. Among these, dermatological manifestations such as Stevens-Johnson syndrome, erythema multiforme, and toxic epidermal necrolysis are well recognised. Reactive infectious mucocutaneous eruption is a relatively rare but notable manifestation. This case report describes a 35-year-old man who developed mucosal lesions involving the ocular, oral, and genital areas after a prodrome of respiratory symptoms. Laboratory tests confirmed a high antibody titre of Mycoplasma pneumoniae. While initial antibiotic therapy improved the respiratory symptoms, mucosal involvement persisted, necessitating the use of systemic corticosteroids, which led to a significant clinical improvement. This case highlights the importance of timely recognition and correct management of this uncommon manifestation of mycoplasma infection.