Undifferentiated pleiotropic spermatic duct sarcoma: a surgical surprise in the inguinal canal that calls for attention - Georgios Tsakaldimis; Georgios-Ioannis Verras; Michail Pitiakoudis; Christos Kalaitzis; Anastasios Karayiannakis; George Pappas-Gogos; Levan Tchabashvili; Konstantinos Tasios; Angelis Peteinaris; Vasileios Tatanis; Francesk Mulita (Gastroenterology Review)