Rhinosporidiosis Masquerading as Soft Tissue Sarcoma: A Rare Tumoral Cutaneous Presentation

We report a case of a 56-year-old male who presented with a large, rapidly enlarging mass over his right thigh that was initially misdiagnosed and managed as filariasis. The lesion progressed rapidly and developed surface ulceration and bleeding. USG and MRI was suggestive of a soft tissue tumor. Wide local excision was performed, and histopathology revealed Rhinosporidiosis, a rare presentation as a solitary tumoral cutaneous lesion. Despite complete excision and postoperative dapsone therapy, he developed recurrent lesions on the back five months later. This case underscores the importance of considering infectious lesions mimicking as neoplastic soft tissue masses in endemic areas, and hence the significance of prompt use of histopathology, and the challenging management and recurrence risk of tumoral cutaneous rhinosporidiosis(1,2).