Case report: obstruction in the right ventricular outflow tract due to hemolymphangioma

Area of Science:

• Cardiology
• Vascular Malformations
• Surgical Oncology

Background:

• Cardiac masses include primary tumors, metastatic diseases, and endocarditis, with myxomas being the most common primary cardiac tumor (75%).
• Hemolymphangiomas are congenital mesenchyme-derived vascular and lymphatic malformations with an incidence of 0.12%-0.28% annually.
• While found in various organs, hemolymphangiomas have not been previously reported in the heart's ventricular outflow tract.

Observation:

• This report details a case of a hemolymphangioma located in the right ventricular outflow tract (RVOT).

Findings:

• The hemolymphangioma in the RVOT was surgically resected.
• Post-operative follow-up for 18 months showed no evidence of tumor recurrence.

Implications:

• This case expands the known anatomical locations for hemolymphangiomas.
• Successful surgical management of RVOT hemolymphangioma demonstrates a viable treatment option.
• Highlights the importance of considering rare vascular malformations in cardiac mass differential diagnoses.