# Right Ventricular Outflow Tract Mass in Antiphospholipid Syndrome

## TL;DR

A rare case of thrombosis in the right ventricular outflow tract in a patient with antiphospholipid syndrome is described, showing regression with anticoagulation.

## Contribution

Reports a rare manifestation of APS involving the RVOT and demonstrates successful treatment with anticoagulation.

## Key findings

- A thrombosis in the right ventricular outflow tract was identified in a 49-year-old APS patient.
- Aggressive anticoagulation led to regression of the thrombosis within one month.
- Transthoracic echocardiography confirmed the presence and regression of the mass.

## Abstract

Antiphospholipid syndrome (APS) is well known for its association with arterial and venous thrombosis. Intracardiac thrombosis—more often involving the right atrium—is a serious manifestation of the disease. We describe an APS case with a thrombosis in the right ventricular outflow tract (RVOT), which underwent regression after aggressive anticoagulation.

We represent a 49‐year‐old man with APS syndrome and history of multiple arterial and venous thrombosis, who presented with dyspnea. Transthoracic echocardiography revealed a mobile, round‐shaped, non‐homogeneous mass (14 × 8 mm), attached to RVOT, in favor of thrombosis. With aggressive anticoagulation the thrombosis regressed after about 1 month.