title: Primary pericardial malignant fibrosarcoma presenting as sudden onset of substernal pain.
authors.forename: S-Y
authors.initials: SY
authors.lastname: Yoo
authors.forename: C-B
authors.initials: CB
authors.lastname: Park
authors.forename: S S
authors.initials: SS
authors.lastname: Cheong
mesh_terms: D000328:Adult; D002637:Chest Pain / Q000209:etiology* / Q000601:surgery; D004452:Echocardiography / Q000379:methods; D005354:Fibrosarcoma / Q000150:complications* / Q000175:diagnosis; D006338:Heart Neoplasms / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D010496:Pericardium / Q000601:surgery