Lipomatous hypertrophy of the atrial septum: Diagnosis with fat suppressedMR imaging

We present a case of a 50-year-old female evaluated for a 1-year history of numbness of the first and second toe of the right foot, Echocardiography p erformed in order to exclude cardiovascular compromise revealed a granular mass originating from the posterior part of the interatrial septum. On subs equent magnetic resonance imaging (MRI) with fat suppression sequences, the final diagnosis of lipomatous hypertrophy of the interatrial septum, a ben ign and underrecognized condition characterized by septal accumulation of f atty tissue, was made. Although no previous reports have focused on this, t ailored cardiac MR with fat suppression sequences proved to he an excellent noninvasive method in assessing an accurate diagnosis and in differentiati ng lipomatous hypertrophy of the atrial septum from other cardiac neoplasms .