Pulmonary Artery Intimal Sarcoma Mimicking Right Ventricular Outflow Tract Thrombus

Area of Science:

• Cardiovascular Medicine
• Thoracic Oncology
• Diagnostic Imaging

Background:

• Pulmonary artery intimal sarcoma is a rare and aggressive malignancy.
• It can present with symptoms mimicking other conditions, such as pulmonary embolism or cardiac tumors.
• Cardiac pacemaker leads can be affected by intrapulmonary masses.

Purpose of the Study:

• To report a rare case of pulmonary artery intimal sarcoma.
• To discuss the diagnostic challenges in differentiating it from a right ventricular outflow tract thrombus.
• To outline surgical and pathological management strategies for this rare tumor.

Main Methods:

• Case presentation of a 72-year-old man with breathlessness and a systolic murmur.
• Diagnostic work-up including imaging and echocardiography.
• Surgical resection and histopathological confirmation of intimal sarcoma.

Main Results:

• A rare pulmonary artery intimal sarcoma was identified.
• The tumor mimicked a right ventricular outflow tract thrombus.
• The sarcoma impacted a cardiac pacemaker lead, posing surgical complexity.

Conclusions:

• Pulmonary artery intimal sarcoma is a rare diagnosis that requires a high index of suspicion.
• Multidisciplinary collaboration is crucial for accurate diagnosis and effective management.
• Surgical resection remains the primary treatment modality, with challenging implications due to tumor location and involvement of cardiac devices.