Lipomatous hypertrophy of the interatrial septum

Case contributed by Jeremy Frank
Diagnosis certain

Presentation

Had workup for nonspecific chest pain. Echocardiography noted "3 x 3.4 cm mass in interatrial septum, near RA roof, with some compression on SVC. Fixed in wall. ? lymphoma"

Patient Data

Age: 70 years
Gender: Female

CT shows well defined mass of fatty attentuation between the atria, causing some extrinsic compression on the SVC confluence.

Case Discussion

Appearances in this case are typical of lipomatous hypertrophy of the interatrial septum.

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