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 hemi-diaphragm 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. (C) 2019 by The Society of Thoracic Surgeons