Ventricular tachycardia caused by mesothelial cyst

Area of Science:

• Cardiology
• Cardiac Surgery
• Pathology

Background:

• Recurrent ventricular tachycardia (VT) can stem from various cardiac conditions.
• Pericardial cysts are typically benign, space-occupying lesions of the pericardium.
• The association between pericardial cysts and significant cardiac arrhythmias like VT is exceptionally rare.

Purpose of the Study:

• To report the first known case of a simple pericardial cyst presenting as a cause of recurrent ventricular tachycardia.
• To emphasize the importance of considering uncommon etiologies in the differential diagnosis of VT.

Main Methods:

• Clinical presentation and diagnostic workup of a 27-year-old female patient with recurrent VT.
• Utilized echocardiography and cardiac magnetic resonance imaging (MRI) for cardiac evaluation.
• Pathologic examination of the resected pericardial cyst.

Main Results:

• Diagnostic imaging revealed a large pericardial cyst.
• Surgical resection and subsequent histopathological analysis confirmed the cyst as mesothelial in origin.
• The patient's recurrent ventricular tachycardia resolved after intervention.

Conclusions:

• Simple pericardial cysts, though rare, can be a direct cause of ventricular tachycardia.
• This case underscores the need for comprehensive cardiac imaging and consideration of extrinsic cardiac masses in unexplained arrhythmias.
• Early diagnosis and management of pericardial cysts can prevent potentially life-threatening cardiac events.