CA: A Cancer Journal for Clinicians, Vol 34, 40-43, Copyright
© 1984 by American Cancer Society
Secondary Carcinoma Involving the Left Atrium
Ralph D. Caldroney M.D.1 and
Edward C. Elliott M.D.2
1 Assistant Professor of Medicine in the Department of Internal Medicine of the University of Kentucky Medical Center in Lexington, Kentucky.
2 Resident in Pathology in the Department of Pathology of the University of Kentucky Medical Center in Lexington, Kentucky.
Although involvement of the heart by metastatic cancer is not uncommon, it is particularly unusual for such tumors to involve the endocardial surface and obstruct blood flow, in the patient described, a large cell, undifferentiated carcinoma of the lung migrated down the pulmonary vein into the left atrium. The clinical picture was consistent with the intermittent ball-valve effect seen with atrial myxomas. The frequency and clinical effects of secondary carcinomas involving the endocardial surface are discussed.