Cardiac tumors other diagnostic studies

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Template:Dj

Cardiac Tumors Biopsy Findings

Biopsy findings associated with cardiac tumors include the following:

Cardiac Tumors Biopsy Findings

Tumor	Biopsy Findings
Myxoma	Hemorrhages, spindle or stellate cells, pseudovascular structure, myxoid matrix. There may be dystrophic calcification present.
Cardiac Lipoma	Histopathologically, a cardiac lipoma is constituted of mature fat cells, fibrous connective tissue, and vacuolated brown fat.
Cardiac Fibroma	Histologically, fibromas are predominantly made of fibroblasts or collagen, with the characteristic "spindle cells." Calcification of fibromas is especially prevalent among elderly people
Fibroelastoma	Histopathologically, a cardiac lipoma is constituted of endocardium-coated fronds contain an avascular collagenous core.
Rhabdomyoma	Cardiac rhabdomyomas are characterized by classic spider cells, polygonal myocytes with conspicuous sarcoplasmic clearing. Rhabdomyomas are formed of enlarged, vacuolated cardiomyocytes.
Fibroelastomas	It consists of endocardium-coated fronds surrounding an avascular collagenous core.
Mesothelioma	Histopathology Mesothelioma cells can exhibit three different configurations, namely largely epithelial, mostly fibrous (spindle cell), and biphasic (mixed). Carcinoembryonic antigen (CEA) and positive mesothelial markers (calretinin and cytokeratins) may effectively distinguish mesotheliomas from pericardial metastases of adenocarcinoma.
Cystic Tumor of the Atrioventricular Node	The tumor is found on the right side of the central fibrous body, invading and squeezing the AV node histologically. The lesions are packed by a mucoid  material and are bordered by epithelium, cytokeratin, and epithelial membrane antigen positive.
Hemangioma	histologically characterized by small capillaries (capillary hemangioma), big vessels (cavernous hemangioma, the most frequent kind), or dysplastic vessels (cirsoid aneurysm).
Hamartoma of Cardiac Myocytes	Lesions are defined histologically by a nodular cluster of enlarged, highly disordered cardiomyocytes.