Atrial dissection-like appearance caused by ileus due to metastatic renal cell carcinoma

Abstract

Atrial dissection is an uncommon entity, defined as a gap from the mitral or tricuspid annular area to the interatrial septum or atrial wall, creating a new chamber with or without communication into the true left or right atrium. We present the interesting images of an atrial dissection-like appearance in the right atrium, which was actually caused by an ileus due to metastatic renal cell carcinoma in a 82-year-old man. The causes of true atrial dissection were also briefly discussed.