Intrathoracic Splenosis Without Clinical Evidence of Diaphragmatic Rupture

Intrathoracic splenosis is a rare diagnosis that is usually made after an invasive procedure. Most cases report concomitant rupture of the spleen and left hemidiaphragm with autotransplantation of splenic tissue into the left hemithorax. We report a case of intrathoracic splenosis with no evidence of diaphragmatic rupture. The mechanism may be explained by hematogenous spread. The patient underwent video-assisted thoracoscopic surgery for diagnosis, which could have been avoided if splenosis was suspected.