Beyond the Typical Papule: A Case Report and Review of a Peptoniphilus asaccharolyticus Abscess in Molluscum Contagiosum

超越典型丘疹:传染性软疣合并无糖消化链球菌脓肿的病例报告及文献综述

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Abstract

Molluscum contagiosum (MC) is a commonly encountered viral skin infection caused by a poxvirus, primarily affecting children, sexually active adults, and immunocompromised individuals. It typically presents as small, dome-shaped, flesh-colored papules with central umbilication. In most cases, the condition is benign, self-limiting, and resolves spontaneously over several months without the need for aggressive treatment. However, complications such as secondary bacterial infection or abscess formation are uncommon, particularly in immunocompetent adults. When such complications do arise, they can pose significant diagnostic and therapeutic challenges, especially when the presentation mimics more common cutaneous infections such as furuncles or other bacterial abscesses. This case report discusses an unusual presentation of molluscum contagiosum in an immunocompetent adult, where the lesion evolved into a deep-seated cutaneous abscess. The atypical clinical features initially obscured the diagnosis, raising concerns for more common pyogenic infections. This underscores the necessity for clinicians to maintain a broad differential diagnosis when encountering atypical skin lesions and highlights the importance of performing appropriate microbial cultures, histopathological examinations, and targeted antimicrobial therapy.

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