Excision of a predominantly intracavitary right atrial tumor, which mimicked a number ofother clinical disorders, effected a 20-year cure. Microscopic, ultrastructural, and immunocytochemical characteristics of the tumor were those of smooth muscle; cellular anaplasia, mitotic activity and tumor infiltration of the auricular myocardium indicated malignant neoplasia, a leiomyosarcoma. Distribution of the tumor was consistent with its origin from the auricular endocardium.
Fine, Gerald and Raju, B. Usha
"Leiomyosarcoma of the Heart: A Twenty-Year Cure,"
Henry Ford Hospital Medical Journal
: Vol. 33
Available at: https://scholarlycommons.henryford.com/hfhmedjournal/vol33/iss1/11