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A calcified amorphous tumor that developed on both sides of the atrioventricular valve annulus

Masaki Kinoshita1, Hideki Okayama2, Go Kawamura2

  • 1Department of Cardiology, Ehime Prefectural Central Hospital, 83 Kasugamachi, Matsuyama, Ehime, 790-0024, Japan. mkino0303@gmail.com.

Journal of Echocardiography
|November 21, 2015
PubMed

Insights

This case study details a rare calcified amorphous tumor (CAT) found in a long-term hemodialysis patient. Surgical intervention successfully removed the cardiac masses, improving the patient's heart function.

Area of Science:

  • Cardiology
  • Pathology
  • Nephrology

Background:

  • Calcified amorphous tumors (CATs) are rare cardiac masses, often associated with chronic kidney disease and long-term dialysis.
  • This report focuses on a unique case involving bilateral atrioventricular valve annulus involvement.

Observation:

  • A 70-year-old female on hemodialysis for 23 years presented with acute heart failure.
  • Echocardiography revealed mobile cardiac masses on both the mitral and tricuspid valve annuli.
  • Initial suspicion included cardiac tumors or vegetations, prompting antibiotic treatment.

Findings:

  • Surgical resection and pathological examination confirmed the masses as calcified amorphous tumors (CATs).
  • The patient underwent successful mitral valve replacement, tricuspid annuloplasty, and tumor resection.
  • This diagnosis highlights a rare manifestation of CAT in a hemodialysis patient.

Implications:

  • This case underscores the importance of considering rare cardiac pathologies like CAT in hemodialysis patients with heart failure.
  • Early diagnosis and surgical management are crucial for improving outcomes in such complex cases.
  • Further research into the pathogenesis and optimal management of CAT in renal disease patients is warranted.

Keywords:
Calcified amorphous tumorHeart failureHemodialysisTransesophageal echocardiographyTransthoracic echocardiography

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