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[Endocardial Blood Cyst in the Right Atrium:Report of a Case]

Yuki Ichimori1, Reo Sakakura, Kazuhiro Tani

  • 1Department of Cardiovascular Surgery, Kanazawa Cardiovascular Hospital, Kanazawa, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|March 28, 2022
PubMed

Insights

A patient with variant angina was incidentally found to have a right atrial tumor. Surgical resection of the endocardial blood cyst prevented embolism, with successful recovery.

Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Pathology

Background:

  • Variant angina is a form of chest discomfort caused by coronary artery spasms.
  • Right atrial tumors are rare and can present with various symptoms or be incidental findings.

Observation:

  • A 74-year-old male presented with chest discomfort, diagnosed as variant angina.
  • Incidental discovery of a cystic tumor with calcified nodules in the right atrium during examination.
  • The tumor was attached to the atrial septum and measured 18x25x3 mm.

Findings:

  • Surgical resection of the cystic tumor was performed, along with a portion of the atrial septum.
  • Histological examination revealed a CD34-positive, calretinin-negative connective tissue wall, consistent with an endocardial blood cyst.
  • Calcified nodules within the cyst were identified as phleboliths.

Implications:

  • Surgical removal of endocardial blood cysts is crucial to prevent potential embolic complications.
  • Successful resection and atrial septal defect closure with a Dacron patch led to an uneventful recovery.
  • This case highlights the importance of thorough cardiac examination for incidental findings, even in patients presenting with other cardiac conditions.

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