title: Massive hemothorax: two unusual cases.
mesh_terms: D000293:Adolescent; D000783:Aneurysm / Q000150:complications*; D001027:Aortography; D003097:Collateral Circulation; D005260:Female; D006491:Hemothorax / Q000209:etiology*; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications*; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011247:Pregnancy; D012421:Rupture; D013157:Splenic Artery; D014328:Trophoblastic Neoplasms / Q000150:complications*
chemical_list: D008727:Methotrexate