[Intracardiac lipoma revealed by arrhythmia]

Area of Science:

• Cardiology
• Cardiac Pathology
• Medical Imaging

Background:

• Benign lipomas in cardiac tissue are exceptionally rare.
• Lipomatous hypertrophy of the interatrial septum is distinct from interseptal lipoma.
• Understanding rare cardiac tumors is crucial for diagnosis and management.

Observation:

• A 58-year-old patient presented with arrhythmia.
• The arrhythmia was the primary symptom revealing an underlying cardiac abnormality.
• Cardiac magnetic resonance imaging (MRI) suggested the diagnosis.

Findings:

• The patient was diagnosed with lipomatous hypertrophy of the interatrial septum.
• Diagnosis was confirmed through intraoperative findings and subsequent histological examination.
• This condition, though rare, can manifest clinically and be detected via advanced imaging.

Implications:

• This case underscores the importance of considering rare cardiac lipomatous lesions in patients with unexplained arrhythmias.
• Accurate diagnosis through MRI and histological confirmation is vital for appropriate patient care.
• Further research into the pathogenesis and clinical significance of interatrial septum lipomatous hypertrophy is warranted.