The article aims at presenting an uncommon case of retrovesically located “proximal-type” epithelioid sarcoma, incidentally found as a retrovesical mass during prostatectomy for benign prostatic hyperplasia. Clinical, pathological and immunohistochemical data are presented. More specifically, two transrectal ultrasounds (TRUS) revealed a prostate gland enhancement and no evidence of other pelvic masses. This case report underlines that the retrovesical location of this neoplasm may mislead from a correct clinical diagnosis.
GuillonL., WaddenC., CoindreJM. Proximal type epithelioid sarcoma, a distinctive aggressive neoplasm showing rhabdoid features. Clinicopathologic, immunohistochemical and ultrastructural study of a series.The Americal J Surgical Pathology1997; 21: 130–46.
2.
FukunagaM., UshigomeS.Proximal type epithelioid sarcoma in the pelvic soft tissues.APMIS1999; 107: 283–8.
3.
HasegawaT., MatsunoY., Shimoda. Proximal type epithelioid sarcoma: a clinicopathologic study of 20 cases.Modern Pathologi2001; 14: 655–33.
