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Hydatid cyst of the right atrium and rheumatic mitral disease: a fortuitous association

A Mahdhaoui1, H Bouraoui, A Khelif

  • 1Department of Cardiology, Farhat Hached Hospital, Sousse, Tunisia.

The Journal of Heart Valve Disease
|August 16, 2003
PubMed

Insights

A rare case of cardiac echinococcosis involving a right atrial hydatid cyst co-existing with rheumatic mitral valve disease was successfully treated. Surgical intervention involved mitral valve replacement and hydatid cyst excision, confirming the diagnosis.

Area of Science:

  • Cardiology
  • Parasitology
  • Radiology

Background:

  • Cardiac echinococcosis is a rare parasitic infection, accounting for 0.5-2% of all echinococcosis cases.
  • Rheumatic heart disease, specifically mitral valve disease, can present with significant calcification and fusion.

Observation:

  • A 43-year-old woman presented with symptoms suggestive of mitral valve disease.
  • Echocardiography revealed a large (4x4 cm) right atrial hydatid cyst alongside severely calcified rheumatic mitral valve disease.
  • Advanced imaging (CT, MRI, lung perfusion scan) confirmed the hydatid cyst and ruled out other pathologies or embolism.

Findings:

  • The patient had a co-existing right atrial hydatid cyst and severe rheumatic mitral valve disease.
  • Surgical management included successful mitral valve replacement and complete excision of the hydatid cyst.
  • Histopathological examination confirmed the diagnosis of a hydatid cyst.

Implications:

  • This case highlights the importance of considering rare parasitic infections like cardiac echinococcosis in patients with pre-existing heart conditions.
  • Multimodality imaging plays a crucial role in diagnosing and characterizing complex cardiac pathologies.
  • Combined surgical treatment is effective for managing co-existing hydatid cysts and valvular heart disease.

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