Hemangioma of the Interatrial Septum: CT and MRI Features

Abstract

Hemangioma of the heart is a rare primary benign tumor mainly appearing as enhancing, homogenous, well-circumscribed mass. We report a case of a 61-year-old asymptomatic woman, whose echocardiography showed a cardiac mass, which was described as the atypical myxoma of the right atrium. For further imaging, contrast-enhanced computed tomography and cardiac magnetic resonance imaging were undertaken, which showed a tumor located in the interatrial septum with imaging characteristics of hemangioma. In the literature, cardiac hemangioma is usually described as an intensely enhancing mass. In our opinion, early peripheral puddling of contrast material with filling in on delayed images is a typical pattern of its enhancement. This characteristic, in addition to high signal intensity on T2-weighted images, allows differentiation of a hemangioma from other benign and malignant tumors.

CT findings of an intracardiac bronchogenic cyst

“…3). The differential diagnosis for a mass in the interatrial septum includes thrombi, myxomas, lipomas, fibromas, cysts, and malignant tumors [9]. For intracardiac cystic lesions, post-traumatic cysts, hydatid cysts, blood cysts, teratomas, and cavernous lymphangioendotheliomas should be included in the differential diagnosis [5].…”

Cardiac venous malformation concurrent with multiple hepatic venous malformations: A case report

“…In addition, MRI in this study suggested that the lesions were of vascular origin, which facilitated the diagnosis and differential diagnosis. Typically, cardiac VM shows isointense and high signal intensity compared with myocardium in T1-and T2-weighted images, respectively (5,8,9). Homogeneous enhancement after contrast infusion is another typical manifestation of cardiac VM (8)(9)(10).…”

Case Report: Incidentally diagnosed hemangioma of the right atrioventricular groove in an athlete

“…Cardiac MRI is a superior tool with a better contrast resolution 5 . Hemangiomas have an intermediate T1 signal with the same intensity as myocardium and a high T2 signal 7 . The dynamic postcontrast acquisition shows nodular enhancement with progressive fill-in on delayed images 8 .…”