Catheter-based biopsy leading to early surgical intervention of the pulmonary artery intimal sarcoma

Abstract Pulmonary artery intimal sarcoma (PAIS) is an extremely rare disease that portends a dismal prognosis. To reach a diagnosis, several diagnostic measures are performed but pathological confirmation is required for an ultimate diagnosis. We report a case where a catheter-based, less invasive approach led to the diagnosis and curative intervention for PAIS.