Rhinosporidiosis Mimicking as Soft-Tissue Tumour: a Case Report

Rhinosporidium seeberi, as per recent taxonomy belongs to eukaryotic mesomycetozoa causes chronic granulomatous lesion known as Rhinosporidiosis, predominantly affects mucous membrane of upper respiratory tract. Rarely disseminated infection also reported affecting limbs, trunk, and viscera especially in immunocompromised patients. Only few cases of cutaneous and subcutaneous involvement are reported till date. Here, we described our experience with Rhinosporidiosis presented as soft tissue tumour in posterior aspect of left mid thigh. A 32-year-old male presented with solitary spherical swelling over posterior aspect of left mid thigh for 6 months. A provisional diagnosis of liposarcoma was made. FNAC was suggestive of Rhinosporidiosis. Excisional biopsy with electro-cauterisation of floor under spinal anaesthesia was done and confirmed histopathologically. Complete upper respiratory tract examination revealed polyp arising from right inferior turbinate. No evidence of recurrence noted since 1 year post excision. Rhinosporidiosis can present as soft tissue tumour in immunocompetent individual also; preoperative diagnosis can be done by FNAC and surgical excision with electro-cauterisation of floor shows no recurrence.