title: An unusual pulmonary embolus.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D001943:Breast Neoplasms / Q000150:complications*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009360:Neoplastic Cells, Circulating; D011655:Pulmonary Embolism / Q000209:etiology*