Cerebral Infarction Due to Calcified Amorphous Tumor: A Rare Case Report

A Calcified Amorphous Tumor (CAT) consists of calcified nodules embedded withinan amorphous fibrous material and represents an uncommon non-neoplasticintracavitary cardiac mass. In this article, we present the case of a 38-year-old Iraniangentleman who experienced a sudden loss of consciousness and right hemiparesis.Brain imaging revealed acute infarction in the left basal ganglia. Echocardiographyidentified a large heterogeneous echodensity in the posterior AV groove, with centralecholucency extending to the base of the posterior left ventricular (LV) wall and thebasal posterior mitral valve leaflet (PMVL), findings consistent with CAT.Cardiac Magnetic Resonance Imaging (CMR) demonstrated an intramural calcifiedmass with a necrotic core located in the lateral annulus of the mitral valve, extendinginto the left atrium and ventricle. The mass was deemed responsible for the cerebralinfarction, which was classified as cardioembolic. This case report highlights CalcifiedAmorphous Tumor (CAT) as a potential embolic source, underscoring the importanceof early recognition through multimodality imaging. Comprehensive management,which may include regular follow-ups or surgical intervention, is crucial for patientsdiagnosed with CAT.