• Madiha Bilal Qureshi, Muhammad Usman, Qurratulain Chundriger, and Nasir Uddin.
• Department of Laboratory Medicine, Histopathology Section, The Aga Khan University Hospital, Karachi, Pakistan.
• J Coll Physicians Surg Pak. 2022 Apr 1; 32 (4): 528-530.

AbstractSolitary fibrous tumour (SFT) is a ubiquitous benign mesenchymal tumour of fibroblastic origin, which occurs most often in middle-aged adults. It usually presents as lung mass originating from pleura, but extrapleural occurrence is also common. Tumour is characterised by hypo- and hyper-cellular areas of spindle-shaped cells, arranged in haphazard manner with dispersed staghorn-shaped vessels. Surgical excision is the curative treatment. SFTs of the primary testicular or paratesticular region are extremely rare, but they exhibit histologic findings similar to SFTs originating at other body sites. Here, we report the case of a paratesticular SFT in a 37-year male, who presented with a non-tender, firm, mobile, left-sided retrotesticular swelling with unique histological features closely mimicking cellular angiofibroma, a common tumour of paratesticular location. Key Words: Solitary fibrous tumour, Paratesticular, benign, angiofibroma.

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