TY - JOUR T1 - Mature cystic teratoma of the pancreas diagnosed by endoscopic ultrasound-guided fine needle aspiration. A case report JO - Revista Española de Patología T2 - AU - Alcaraz Mateos,Eduardo AU - Cabezas Jiménez,Antonio AU - Aparicio Tormo,José Ramón AU - Paya Romá,Artemio AU - De La Hoz Rosa,Javier AU - Ignacio Aranda López,Francisco SN - 16998855 M3 - 10.1016/j.patol.2009.10.001 DO - 10.1016/j.patol.2009.10.001 UR - https://www.elsevier.es/es-revista-revista-espanola-patologia-297-articulo-mature-cystic-teratoma-pancreas-diagnosed-S1699885509000051 AB - IntroductionFine needle aspiration (FNA) guided by ecoendoscopy (EE) or endoscopic ultrasound (EUS) has become a useful diagnostic tool for cystic lesions of the pancreas. We present a case of mature cystic teratoma in the body of the pancreas which was diagnosed preoperatively and successfully treated with distal pancreatectomy and splenectomy. The characteristics, preoperative diagnosis and the differential diagnosis of this rare entity are discussed. Case HistoryA 39 year old woman presented with epigastric pain. A computed tomography (CT) scan showed an 8.5cm multicystic pancreatic mass. FNA guided by ecoendoscopy provided tissue for cytological examination which showed distinct types of epithelium (mucous, ciliary and squamous), leading to a preoperative diagnosis of mature cystic teratoma. DiscussionMature cystic teratoma of the pancreas is extremely rare and has a wide range of differential diagnoses which include cystic and pseudocystic tumours. FNA guided by ecoendoscopy is a useful tool for the preoperative diagnosis of pancreatic lesions but an in situ evaluation of the cytopathologist necessary to obtain good sampling. ER -