Abstract
The fluoroscopic visualization of a calcified polypoid tumor of the heart introduces a diagnostic sign to aid in the infrequent recognition of these rare tumors during life. The preoperative or antemortem diagnosis of primary heart tumors has been made several times in the past from symptomatology, clinical findings, and electrocardiographic evidence (2, 13, 18, 21). Routine roentgenographic studies, though usually suggestive only in retrospect, have aided in the correct clinical diagnosis during life in several instances (5, 15, 16, 18). Because of the successful removal of some of these tumors in the past (1, 4, 17), and the possibility of the removal of a larger number, it is imperative that every roentgenographic means be utilized for their identification, localization, and delineation. Pathology The classification and microscopic features of primary cardiac tumors have been adequately discussed elsewhere (6, 11, 12, 19). In interpreting the roentgenographic findings, however, it is important to recon...
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