J Cardiovasc Ultrasound.  2009 Mar;17(1):16-18. 10.4250/jcu.2009.17.1.16.

A Blood-Filled Cystic Mass Attached to the Anterolateral Papillary Muscle

• Park JP
• Song JM
• Lee JW
• Kim GJ
• Lee JW
• Kim KE
• Kang JW
• Kang DH
• Song JK

• KMID: 1473762
• DOI: http://doi.org/10.4250/jcu.2009.17.1.16

Abstract

A 22 year-old male had a cystic mass attached to the anterolateral papillary muscle which was diagnosed using transthoracic and transesophageal echocardiography. Cardiac MRI was done to prove the nature of cystic mass. This cystic mass was successfully resected by da Vinci system without damage to the valve. Histologically this cystic mass proved to be a blood-filled cystic mass.

Keyword

Cysts; Papillary muscle; Echocardiography

MeSH Terms

Echocardiography
Echocardiography, Transesophageal
Humans
Male
Papillary Muscles

Figure

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  Fig. 1 Transthoracic echocardiography shows (A) that cystic mass (arrow) in left ventricular cavity on the parasternal long axis view and (B) that the mass is attached to the top of lateral papillary muscle (arrow) on the parasternal short axis view.

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  Fig. 2 Cardiac magnetic resonance image shows no uptake of gadolinium (black area within mass) in cystic mass (arrow) at the delayed phase, suggestive of cystic nature of the mass.

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  Fig. 3 Low- (A) and high- (B) power microscopic findings of the mass show that the capsule of cystic mass consists of thick fibrous tissue, endothelial cell lining and subendothelial aggregation of blast-like cells (hematoxylin-eosin, original magnification ×40 and ×200, respectively).

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