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Cardiac angiomyolipoma: radiologic and pathologic correlation

C C Tsai1, C Y Chou, S J Han

  • 1Department of Radiology, Tainan Municipal Hospital, Taiwan ROC.

Journal of the Formosan Medical Association = Taiwan Yi Zhi
|August 1, 1997
PubMed
Summary

This case report details the largest cardiac angiomyolipoma, a rare fat-containing heart tumor, initially misdiagnosed as teratoma. It highlights the importance of considering angiomyolipoma in cardiac tumor differentials.

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Area of Science:

  • Cardiovascular Pathology
  • Surgical Oncology

Background:

  • Primary cardiac tumors are rare, posing diagnostic challenges.
  • Fat-containing masses within the heart require careful differential diagnosis.

Observation:

  • A large, intrapericardial, lobulated mass (34 x 30 x 12 cm, 3,150 g) was discovered arising from the right atrium.
  • Initial imaging suggested a teratoma with intrapericardial invasion due to mixed density and calcification.
  • The patient presented with severe dyspnea, indicative of significant cardiac compromise.

Findings:

  • Histopathologic examination confirmed the mass as a cardiac angiomyolipoma (hamartoma).
  • This represents the largest cardiac angiomyolipoma documented in medical literature.
  • The tumor exhibited severe adhesion to the inferior vena cava origin.

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Implications:

  • Cardiac angiomyolipoma should be included in the differential diagnosis for fat-containing cardiac tumors.
  • Accurate preoperative diagnosis is crucial for appropriate surgical planning and patient management.
  • This case underscores the importance of comprehensive histopathological analysis in diagnosing rare cardiac neoplasms.