title: Mature cardiac myocyte hamartoma in the right atrium.
abstract: During coronary artery bypass grafting in a 58-year-old man, a mass was discovered incidentally in the right atrium, measuring 1.5 x 1 x 0.5 cm. It was composed of disorganized hypertrophic mature cardiac myocytes, and associated with focal fibrosis, mature adipocytes, and mild lymphocytic infiltration in peripheral areas, indicative of cardiac hamartoma. This type of hamartoma has been rarely reported as an isolated mass in the right atrium.
authors.affiliation: Cardiothoracic Surgery Department, Tehran Heart Center, Medical Sciences University of Tehran, Tehran, Iran.
authors.forename: Namvar
authors.initials: N
authors.lastname: Movahedi
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: Boroumand
authors.forename: Maryam
authors.initials: M
authors.lastname: Sotoudeh Anvari
authors.forename: Parin
authors.initials: P
authors.lastname: Yazdanifard
mesh_terms: D017667:Adipocytes / Q000473:pathology; D009202:Cardiomyopathies / Q000473:pathology*; D001026:Coronary Artery Bypass; D005355:Fibrosis; D006222:Hamartoma / Q000473:pathology*; D006325:Heart Atria / Q000473:pathology; D006801:Humans; D033162:Incidental Findings; D008214:Lymphocytes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D032383:Myocytes, Cardiac / Q000473:pathology*