title: Right atrial myxoma with glandular differentiation: A rare entity in pediatric age group.
abstract: Cardiac myxomas (CMs) account for nearly half of the primary cardiac tumors in the elderly. They arise from sub-endocardial "reserve" or lepidic" cells, which may show divergent differentiation. We describe a CM with glandular differentiation in the right atrium of a 10-year-old child who presented with respiratory distress on exertion, of 2 months duration. On echocardiography, two large interconnected masses measuring 34×30 mm and 20×17 mm were seen to arise from the free wall of the right atrium. Cut surface of the excised mass was myxoid with areas of calcification. On microscopy, there were typical features of a myxoma with prominent glandular differentiation and characteristic immunophenotype. The case is being reported due to its rarity in pediatric age group as well as its glandular differentiation, which must be recognized as a spectrum of histomorphologic diversity and must not be mistaken for a metastatic adenocarcinoma.
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Saumya R
authors.initials: SR
authors.lastname: Mallick
authors.forename: Prasenjit
authors.initials: P
authors.lastname: Das
authors.forename: Bhaskar
authors.initials: B
authors.lastname: Shukla
authors.forename: Ss
authors.initials: S
authors.lastname: Kothari
authors.forename: V
authors.initials: V
authors.lastname: Devagourou
authors.forename: Ruma
authors.initials: R
authors.lastname: Ray