Cardiac hemangioma of the left atrial appendage: CT and MR findings

Hidekazu Oshima1, Masaki Hara, Taro Kono

  • 1Department of Radiology, Nagoya City University Graduate School od Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan. eaaa2420@mb.infoweb.ne.jp

Insights

Cardiac hemangiomas are rare tumors. This case highlights CT and MR imaging findings of a left atrial appendage hemangioma, emphasizing diagnostic challenges in differentiating it from other cardiac or pericardial tumors.

Area of Science:

  • Cardiovascular Imaging
  • Oncology
  • Pathology

Background:

  • Cardiac hemangiomas are uncommon benign neoplasms originating from the heart's muscle tissue.
  • Primary cardiac tumors are rare, with hemangiomas representing a small subset.

Observation:

  • A case of cardiac hemangioma originating from the left atrial appendage is presented.
  • The tumor extended into the pericardial cavity, posing a diagnostic challenge.

Findings:

  • Computed tomography (CT) revealed homogenous density.
  • Magnetic resonance (MR) imaging demonstrated heterogeneous signal intensity.
  • Inhomogeneous enhancement was observed after intravenous contrast administration.

Implications:

  • Accurate differentiation of cardiac hemangiomas from other myocardial or pericardial tumors is crucial for diagnosis.
  • Advanced imaging techniques like CT and MR are vital for characterizing cardiac neoplasms.
  • Understanding the imaging characteristics aids in surgical planning and patient management.

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