Atypical myxoma.

Abstract

We report the case of a 38-year-old woman with a large thin-walled cystic mass (6 x 5 x 4.5 cm) filled with arterial blood in the right atrium. The cystic mass with blood content was clearly delineated by transesophageal cross-sectional echocardiography and magnetic resonance imaging of the heart. At operation, a silver-whitish, smooth surfaced cystic mass was found attached to the free wall of the right atrium between the superior vena cava and the right atrial appendage with a broad base. Microscopically, the wall of the cyst was composed of stellate mesenchymal cells embedded within a myxoid matrix which was proved by alcian blue stain. To our knowledge, this type of cardiac myxoma has not been previously reported.

• Authors: J J Hwang, W P Lien, P Kuan, C R Hung, S W How
• Journal: Chest (Chest) Vol. 100 Issue 2 Pg. 550-1 (Aug 1991) ISSN: 0012-3692 [Print] United States
• PMID: 1864135 (Publication Type: Case Reports, Journal Article)

Topics

• Adult
• Cysts (pathology)
• Female
• Heart Atria (pathology)
• Heart Neoplasms (pathology)
• Humans
• Mesoderm (pathology)
• Myxoma (pathology)