Coronary Artery Pseudoaneurysm due to Medial Mucoid Degeneration Mimicking an Intra-atrial Mass

Tomohiro Honda; Hiroaki Kawano; Akira Tsuneto; Tomoo Nakata; Takeo Yoshida; Seiji Koga; Satoshi Ikeda; Kuniko Abe; Tomayoshi Hayashi; Shogo Yokose; Kiyoyuki Eishi; Koji Maemura

doi:10.2169/internalmedicine.54.3804

CASE REPORTS

Coronary Artery Pseudoaneurysm due to Medial Mucoid Degeneration Mimicking an Intra-atrial Mass

Tomohiro Honda, Hiroaki Kawano, Akira Tsuneto, Tomoo Nakata, Takeo Yoshida, Seiji Koga, Satoshi Ikeda, Kuniko Abe, Tomayoshi Hayashi, Shogo Yokose, Kiyoyuki Eishi, Koji Maemura

Author information

Tomohiro Honda
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan
Hiroaki Kawano
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan
Akira Tsuneto
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan
Tomoo Nakata
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan
Takeo Yoshida
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan
Seiji Koga
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan
Satoshi Ikeda
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan
Kuniko Abe
Department of Pathology, Nagasaki University Hospital, Japan
Tomayoshi Hayashi
Department of Pathology, Shimabara Prefectural Hospital, Japan
Shogo Yokose
Department of Cardiovascular Surgery, Nagasaki University Graduate School of Biomedical Sciences, Japan
Kiyoyuki Eishi
Department of Cardiovascular Surgery, Nagasaki University Graduate School of Biomedical Sciences, Japan
Koji Maemura
Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan

Keywords: coronary artery, aneurysm, cardiac mass, echocardiography, medial mucoid degeneration

JOURNAL OPEN ACCESS

2015 Volume 54 Issue 19 Pages 2453-2458

DOI https://doi.org/10.2169/internalmedicine.54.3804

Details

Abstract

Coronary artery aneurysms are frequently asymptomatic and may be difficult to diagnose by cardiac imaging. We herein present a case of a coronary artery aneurysm of the right coronary artery due to medial mucoid degeneration mimicking an intra-atrial mass on echocardiography and magnetic resonance imaging, with the cause being diagnosed after surgery.

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