Abstract
Carcinoid tumors are rare neuroendocrine malignancies. We present two cases of metastatic carcinoid tumors, complicated by carcinoid syndrome and by cardiac valve involvement. Carcinoid syndrome is characterized by secretory diarrhea, episodic flushing, and bronchospasm. Cardiac involvement occurs in up to 50% of patients with metastatic carcinoid tumors which commonly causes abnormalities of the right sided valves. Echocardiography is the best available and non invasive technique for diagnosis. Characteristic features of carcinoid heart disease are thickened, shortened, retracted, and fixed or partially fixed valve leaflets. Three-dimensional (3D) echocardiography provided an en face view of pulmonary and tricuspid valve, not obtainable by two-dimensional echocardiography, and improved delineation of the relationship between these structures and cardiac chambers.
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