title: Smooth muscle neoplasm presenting as intrapericardial myxoma.
abstract: This report describes the echocardiographic appearance of an intrapericardial mass and pericardial effusion in an otherwise healthy patient. The tumor was a globular mass attached to the left atrium by a stalk, suggestive of a myxoma. The mass was successfully excised and the patient had an uneventful recovery. Histology revealed a smooth muscle tumor with extensive adipocytic differentiation and numerous small blood vessels. This study represents the first echocardiographic description of a smooth muscle tumor presenting as an extracardiac myxoma.
authors.affiliation: Department of Cardiology, LDS Hospital, Salt Lake City, Utah, USA. SCHorton@msn.com
authors.forename: Steven C
authors.initials: SC
authors.lastname: Horton
authors.forename: Stephanie
authors.initials: S
authors.lastname: Nay
authors.forename: Michael
authors.initials: M
authors.lastname: Gonzales
authors.forename: Marsha
authors.initials: M
authors.lastname: McIntosh
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Hammond
authors.forename: Stephen
authors.initials: S
authors.lastname: Clayson
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006338:Heart Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D019042:Muscle Neoplasms / Q000000981:diagnostic imaging*; D009131:Muscle, Smooth, Vascular / Q000000981:diagnostic imaging*; D009232:Myxoma / Q000000981:diagnostic imaging*; D014463:Ultrasonography