title: Solitary fibrous tumor of the pelvis: an uncommon soft-tissue tumor. A case report.
abstract: A rare case of Solitary fibrous tumor (SFT) of the pelvis is reported. A 76-years-old man presented with a low abdominal pain, acute urine retention and constipation. Imaging studies (US, CT MR) showed an 17 x 10 x 9 ovoid mass in the pelvis, dislocating bladder and rectum. Finally, trans-rectal needle biopsy suggested the diagnosis of SFT. En bloc excision of tumor and rectum (because of strong adhesions) was performed. Histological examination showed spindle and fibroblastic-like cells dispersed in collagenous areas with positive stains for CD34, bcl-2, CD99 and it confirmed diagnosis of SFT. No postoperative complications occurred, only vesico-sphincter dyssynergia was found by urodynamics. After 5 years, patient is disease-free. SFT is, usually, benign tumor with slow growth and excellent prognosis. Complete surgical resection is the only curative treatment. However, 10-15% of SFT are malignant and histological findings cannot always predict clinical behaviour. For this reason, careful and long term follow-up is necessary after surgery.
authors: Department of General Surgery, Magna Graecia University of Catanzaro, Germaneto, 88100 Catanzaro, Italy. francesco.pata@gmail.com
authors: Francesco
authors: F
authors: Pata
authors: Vincenzo
authors: V
authors: Orsini
authors: Ada Maria
authors: AM
authors: Lucisano
authors: Donato Paolo
authors: DP
authors: Pafundi
authors: Rosario
authors: R
authors: Sacco
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D010386:Pelvic Neoplasms / Q000175:diagnosis / Q000601:surgery; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000601:surgery; D054364:Solitary Fibrous Tumors / Q000175:diagnosis / Q000601:surgery