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精巣横紋筋肉腫が右心室乳頭筋と三尖弁に転移した珍しい症例
Unusual presentation of testicular rhabdomyosarcoma metastases to the right ventricle papillary muscle and tricuspid valve.
PMID: 32670460 PMCID: PMC7341057. DOI: 10.1016/j.radcr.2020.05.075.
抄録
精巣癌の心臓内転移は非常に稀な現象である。精巣横紋筋肉腫と肺転移の既往歴のある30歳男性が、初診から3年後のサーベイランスCT検査で心腔内充填欠損を認めた。さらなる評価のために心臓磁気共鳴画像検査が行われ、右心室内に小塊状の不均一に増強した移動性の腫瘤が前乳頭筋に付着していることが確認された。患者はこの心臓腫瘤の開腹手術を受けたが、精巣横紋筋肉腫の右室乳頭筋と三尖弁への転移が確認された。我々の知る限りでは、これは精巣新生物から右室乳頭筋と三尖弁への転移を記載した文献では初めての報告である。
Intracardiac metastasis of the testicular cancer is very rare phenomenon. A 30-year-old-man with a history of testicular rhabdomyosarcoma and lung metastases was found to have an intracardiac filling defect in a surveillance computed tomography scan 3 years after the initial diagnosis. A cardiac magnetic resonance imaging study was performed for further evaluation and demonstrated a lobulated, heterogeneously enhancing mobile mass within the right ventricle attaching to the anterior papillary muscle. Patient underwent an open surgical resection of the cardiac mass that was confirmed metastasis of testicular rhabdomyosarcoma into the right ventricular papillary muscle and tricuspid valve. To our knowledge, this is the first report in the literature that describes metastasis to a papillary muscle and tricuspid valve from a testicular neoplasm.
© 2020 Published by Elsevier Inc. on behalf of University of Washington.