[Congenital intrathoracic accessory spleen: a case report].

Accessory spleen is a rare anomaly occurring in approximately 10% of people. Most often, accessory spleen can be located in spleen gate. However, localization in parenchymal abdominal organs, retroperitoneal space, pelvis and chest is also possible. Congenital accessory spleen is extremely rare, and only several cases are described in the literature. Diagnosis causes some difficulties. CT-based differentiation with malignant tumor is difficult. We present a 72-year-old patient with congenital intrathoracic accessory spleen.