title: Critical tricuspid regurgitation secondary to ruptured chordae tendineae mimicking a mass on the tricuspid valve in a newborn.
abstract: Tricuspid regurgitation (TR) due to chordal rupture is a rare condition in newborns. We present a newborn with critical TR. Cross-sectional echocardiography demonstrated a dense, mobile mass localized at the tricuspid valve and resembling an atrial thrombus or myxoma. At operation, ruptured chordae tendineae of the tricuspid valve were found, forming a tangled mass. Histopathologic examination revealed collagen degeneration and calcification in the ruptured chordae, producing the hyperechoic image. It should be emphasized that ruptured chordae of the tricuspid valve might mimic a tricuspid valve myxoma or a thrombus on cross-sectional echocardiography.
authors.affiliation: Department of Pediatric Cardiology, Ankara University, Turkey.
authors.forename: S
authors.initials: S
authors.lastname: Atalay
authors.forename: A
authors.initials: A
authors.lastname: Imamoglu
authors.forename: O
authors.initials: O
authors.lastname: Uluoglu
authors.forename: C
authors.initials: C
authors.lastname: Ikizler
mesh_terms: D002815:Chordae Tendineae; D003937:Diagnosis, Differential; D004452:Echocardiography; D005260:Female; D006338:Heart Neoplasms / Q000175:diagnosis*; D006341:Heart Rupture / Q000150:complications* / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D009232:Myxoma / Q000175:diagnosis*; D014262:Tricuspid Valve Insufficiency / Q000175:diagnosis* / Q000209:etiology*