Cardiac Lipoma : Pathology
Pathology: Grossly and microscopically, cardiac lipomas resemble soft tissue lipomas seen elsewhere and consist of a well-defined encapsulated mass of mature fat which may show a few entrapped cardiac myocytes. In contrast, lipomatous hypertrophy is not encapsulated and is always in the atrial septum. This image shows cut surface of a resected atrial lipoma (same case as the previous image). It is composed of unremarkable mature yellow adipose tissue. Image courtesy of: Dr. Ibrahim Zardawi; used with permission.