Unresectable cardiac pseudoneoplasms causing ventricular tachycardia.

Area of Science:

• Cardiology
• Pathology

Background:

• Cardiac pseudoneoplasms are rare, benign tumor-like lesions.
• They are classified by the World Health Organization.

Observation:

• Two patients presented with recurrent ventricular tachycardia (VT).
• Magnetic resonance imaging revealed large pathological masses in the left ventricle of both patients.

Findings:

• Tumor localization precluded surgical resection in both cases.
• Biopsies were performed, and malignancy was ruled out.
• Patients were treated with amiodarone and implantable cardioverter-defibrillators (ICDs).

Implications:

• Ventricular tachycardia (VT) can be a symptom of cardiac tumors.
• Implantable cardioverter-defibrillator (ICD) treatment for VT should follow a comprehensive diagnosis to exclude cardiac tumors.