Calcified amorphous tumor of the heart with mitral annular calcification: a case report

Abstract Background Calcified amorphous tumor of the heart is a rare, non-neoplastic cardiac mass characterized by nodular calcium in the background of amorphous degenerating fibrinous material. Clinical diagnosis of calcified amorphous tumor can be difficult, and current single imaging techniques d...

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Main Authors: Ryo Nakamaru, Hiroki Oe, Katsuomi Iwakura, Takafumi Masai, Kenshi Fujii
Format: Article
Language:English
Published: BMC 2017-07-01
Series:Journal of Medical Case Reports
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13256-017-1337-9
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author Ryo Nakamaru
Hiroki Oe
Katsuomi Iwakura
Takafumi Masai
Kenshi Fujii
author_facet Ryo Nakamaru
Hiroki Oe
Katsuomi Iwakura
Takafumi Masai
Kenshi Fujii
author_sort Ryo Nakamaru
collection DOAJ
description Abstract Background Calcified amorphous tumor of the heart is a rare, non-neoplastic cardiac mass characterized by nodular calcium in the background of amorphous degenerating fibrinous material. Clinical diagnosis of calcified amorphous tumor can be difficult, and current single imaging techniques do not specifically differentiate calcified amorphous tumor from other cardiac tumors such as calcified atrial myxoma, calcified thrombi, or vegetation. Complete surgical resection is the treatment of choice for both symptom improvement and prevention of embolization, as well as for pathological diagnosis. Case presentation A 70-year-old Asian man with end-stage renal disease complained of chest discomfort during exercise. He had no history of thromboembolism or endocarditis. A transthoracic echocardiogram revealed mitral annular calcification as well as a highly mobile mass (8 × 6 mm) attached to the ventricular side of the posterior mitral valve leaflet. As the mass was highly mobile, suggesting a high risk of embolization, he underwent surgical resection. A histopathological examination revealed multiple nodular amorphous calcifications, along with fibrous connective tissue. There were no identifiable myxoma or malignancy cells. Consequently, the diagnosis of calcified amorphous tumor was confirmed. Conclusions In the present case, a calcified amorphous tumor arose from mitral annular calcification. A characteristic of mitral annular calcification-related calcified amorphous tumor is its highly mobile nature, with a high risk of stroke or other systemic embolism. Therefore, surgical therapy should be considered for treatment of calcified amorphous tumors.
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spelling doaj.art-1707d49bfd4e4116bca5a1979b3a948c2022-12-22T03:33:18ZengBMCJournal of Medical Case Reports1752-19472017-07-011111510.1186/s13256-017-1337-9Calcified amorphous tumor of the heart with mitral annular calcification: a case reportRyo Nakamaru0Hiroki Oe1Katsuomi Iwakura2Takafumi Masai3Kenshi Fujii4Department of Cardiology, Sakurabashi Watanabe HospitalDepartment of Cardiology, Sakurabashi Watanabe HospitalDepartment of Cardiology, Sakurabashi Watanabe HospitalDepartment of Cardiology, Sakurabashi Watanabe HospitalDepartment of Cardiology, Sakurabashi Watanabe HospitalAbstract Background Calcified amorphous tumor of the heart is a rare, non-neoplastic cardiac mass characterized by nodular calcium in the background of amorphous degenerating fibrinous material. Clinical diagnosis of calcified amorphous tumor can be difficult, and current single imaging techniques do not specifically differentiate calcified amorphous tumor from other cardiac tumors such as calcified atrial myxoma, calcified thrombi, or vegetation. Complete surgical resection is the treatment of choice for both symptom improvement and prevention of embolization, as well as for pathological diagnosis. Case presentation A 70-year-old Asian man with end-stage renal disease complained of chest discomfort during exercise. He had no history of thromboembolism or endocarditis. A transthoracic echocardiogram revealed mitral annular calcification as well as a highly mobile mass (8 × 6 mm) attached to the ventricular side of the posterior mitral valve leaflet. As the mass was highly mobile, suggesting a high risk of embolization, he underwent surgical resection. A histopathological examination revealed multiple nodular amorphous calcifications, along with fibrous connective tissue. There were no identifiable myxoma or malignancy cells. Consequently, the diagnosis of calcified amorphous tumor was confirmed. Conclusions In the present case, a calcified amorphous tumor arose from mitral annular calcification. A characteristic of mitral annular calcification-related calcified amorphous tumor is its highly mobile nature, with a high risk of stroke or other systemic embolism. Therefore, surgical therapy should be considered for treatment of calcified amorphous tumors.http://link.springer.com/article/10.1186/s13256-017-1337-9Calcified amorphous tumorMitral annular calcificationEnd-stage renal disease
spellingShingle Ryo Nakamaru
Hiroki Oe
Katsuomi Iwakura
Takafumi Masai
Kenshi Fujii
Calcified amorphous tumor of the heart with mitral annular calcification: a case report
Journal of Medical Case Reports
Calcified amorphous tumor
Mitral annular calcification
End-stage renal disease
title Calcified amorphous tumor of the heart with mitral annular calcification: a case report
title_full Calcified amorphous tumor of the heart with mitral annular calcification: a case report
title_fullStr Calcified amorphous tumor of the heart with mitral annular calcification: a case report
title_full_unstemmed Calcified amorphous tumor of the heart with mitral annular calcification: a case report
title_short Calcified amorphous tumor of the heart with mitral annular calcification: a case report
title_sort calcified amorphous tumor of the heart with mitral annular calcification a case report
topic Calcified amorphous tumor
Mitral annular calcification
End-stage renal disease
url http://link.springer.com/article/10.1186/s13256-017-1337-9
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AT takafumimasai calcifiedamorphoustumoroftheheartwithmitralannularcalcificationacasereport
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