The Journal of Thoracic and Cardiovascular Surgery, Vol 71, 517-519, Copyright © 1976 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Epicardial tumor-like angiofibromatous proliferative lesion. An unusual complication of coronary bypass surgery
JT Lie, FJ Daniel and MH Mullerworth
The first report of an unusual complication of coronary bypass surgery for
myocardial revascularization is presented. In a dog used for experimental
studies of internal mammary artery (IMA)-coronary bypass and killed three
months later, the postmortem examination of the heart showed a tumor-like
epicardial angiofibromatous nodule at the site of the IMA-left anterior
descending (LAD) coronary artery anastomosis. The lesion, consisting of
plexiform vascular channels in a fibrocollagenous stroma, measured 2 by 1.5
by 1 cm. This was the only lesion found in the animal. It was speculated
that the lesion might have arisen from a hematoma developing at the site of
arterial anastomosis.