Fig. 4
From: Surgical repair of a giant congenital right atrial aneurysm: a case report
Histology of the wall of the aneurysm. a – In this specimen a thin wall of the resected aneurysm is visible. Almost no myofibrils are visible. An infiltration of inflammatory cells is visible. (Hematoxylin-eosin stain, original magnification x 200). b – Hypertrophied myofibrils with giant irregular nuclei and severe fibrosis are visible. Epicardial surface is covered by fibrin and erythrocytes (Masson trichrome stain, original magnification x 200)