A Rare Case of a Pelvic Solitary Fibrous Tumor.

Solitary fibrous tumors (SFTs) are rare neoplasms commonly arising from the pleura. Multiple extra-pleura occurrences have been established by the literature. CT scan and MRI with IV contrast serve as the steppingstone for early detection and diagnosis, and to evaluate disease burden. Surgical resection is most of the time curative. SFTs carry a malignant potential and may recur or metastasize thus long-term follow-up is of utmost importance for patients diagnosed with this tumor. We discuss the case of a 47-year-old male patient who presented with urinary retention, caused by a large pelvic tumor pathologically proven to be a solitary fibrous tumor.