Primary leiomyosarcoma of the pulmonary artery.
D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis*; D008875:Middle Aged; D011651:Pulmonary Artery / Q000473:pathology; D011655:Pulmonary Embolism / Q000175:diagnosis