Pulmonary Artery Sarcoma: A Rare Entity.

Area of Science:

• Cardiovascular Pathology
• Thoracic Oncology
• Rare Sarcomas

Background:

• Pulmonary artery sarcomas (PAS) are exceptionally rare malignant tumors.
• These tumors often present with symptoms that mimic pulmonary thromboemboli, complicating diagnosis.
• The histogenesis of PAS remains uncertain, contributing to diagnostic challenges.

Purpose of the Study:

• To report a case of pulmonary artery sarcoma (PAS).
• To illustrate the diagnostic challenges posed by PAS, particularly when mimicking pulmonary embolism.
• To highlight the clinical presentation and outcome of a patient with PAS.

Main Methods:

• Case report of a 60-year-old female patient.
• Clinical presentation including recurrent chest pain and cough.
• Diagnostic imaging (revealing a left hilar mass extending into pulmonary arteries).
• Tru-cut biopsy confirming undifferentiated sarcoma.

Main Results:

• The patient initially presented with symptoms suggestive of pulmonary embolism.
• Anticoagulant therapy was ineffective, prompting further investigation.
• Imaging revealed a large mass in the left hilar region involving the pulmonary artery.
• Biopsy confirmed an undifferentiated sarcoma.

Conclusions:

• Pulmonary artery sarcomas are rare and can be misdiagnosed as pulmonary embolism.
• Prompt and accurate diagnosis through advanced imaging and biopsy is crucial.
• Despite diagnosis, the prognosis for PAS can be poor, as illustrated by this case.