title: A calcified amorphous tumor that developed on both sides of the atrioventricular valve annulus.
abstract: We report a rare case of a hemodialysis patient with a calcified amorphous tumor (CAT) on both sides of the atrioventricular valve annulus. A 70-year-old female who had received hemodialysis for 23 years because of chronic glomerulonephritis presented to our hospital with acute heart failure. Echocardiography indicated the presence of mobile cardiac masses on the mitral valve and tricuspid valve annulus. We suspected the presence of a cardiac tumor or vegetation. The patient received 3 g/day sulbactam-ampicillin and 60 mg/day gentamicin. Surgery was performed on the 14th day after hospital admission. The patient underwent mitral valve replacement, tricuspid annuloplasty, and tumor resection. Based on the pathological findings, the cardiac tumor was diagnosed as a CAT.
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan. mkino0303@gmail.com.
authors.forename: Masaki
authors.identifier: http://orcid.org/0000-0002-2607-7829
authors.initials: M
authors.lastname: Kinoshita
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Okayama
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Go
authors.initials: G
authors.lastname: Kawamura
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Shigematsu
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Tatsunori
authors.initials: T
authors.lastname: Takahashi
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Toru
authors.initials: T
authors.lastname: Miyoshi
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Akinori
authors.initials: A
authors.lastname: Higaki
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Kayo
authors.initials: K
authors.lastname: Hara
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Kawata
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Go
authors.initials: G
authors.lastname: Hiasa
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Tadakatsu
authors.initials: T
authors.lastname: Yamada
authors.affiliation: Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan.
authors.forename: Yukio
authors.initials: Y
authors.lastname: Kazatani
authors.affiliation: Department of Cardiology, South Matsuyama Hospital, Matsuyama, Japan.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Hayashi
mesh_terms: D000368:Aged; D001021:Aortic Valve; D002114:Calcinosis / Q000000981:diagnostic imaging*; D004452:Echocardiography; D005260:Female; D006338:Heart Neoplasms / Q000000981:diagnostic imaging*; D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve; D008944:Mitral Valve Insufficiency; D014261:Tricuspid Valve; D014262:Tricuspid Valve Insufficiency
keywords: Calcified amorphous tumor; Heart failure; Hemodialysis; Transesophageal echocardiography; Transthoracic echocardiography