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Pulmonary artery sarcoma (PAS) is a rare malignant tumor that originates from the pulmonary artery (PA) with a poor prognosis.[1] Early diagnosis and radical surgical resection offer the only chance for survival.[2,3] As most PA sarcomas involve the PA trunk, making a preoperative histopathological diagnosis is quite difficult. So far, most PAS cases were reported with diagnosis made either at autopsy or intraoperatively with frozen sections.[4,5] Therefore, it will be very helpful if PAS can be diagnosed before surgery. For this purpose, some authors have attempted transcatheter suction biopsy to diagnose PAS preoperatively.[6,7] However, transcatheter suction biopsy often misses out the tumor as it does not provide sufficient core tissue. In our clinical practice and other reports, few of them succeeded.[8] In this preliminary study, a new technique of endovascular catheter‐guided forceps biopsy (CGFB) was used to diagnose PAS. We describe the procedure and report results on a series of eight cases.

Endovascular Catheter-guided Forceps Biopsy for the Diagnosis of Suspected Pulmonary Artery Sarcoma