Güvenç O.Şengül F.S.Saygi M.Ergül Y.Güzeltaş A.2020-03-262020-03-2620141016-5169https://dx.doi.org/10.5543/tkda.2014.55506https://hdl.handle.net/20.500.12395/31317Costello syndrome is a rare syndrome characterized by failure to thrive, short stature, mental motor retardation, characteristic facial features, macrocephaly, a short neck, loose soft skin with deep palmar and plantar creases, and hypertrichosis. Cardiac involvement is seen in almost two thirds of patients, and is a determinant for the prognosis of Costello syndrome. The most common cardiac anomalies are pulmonary stenosis, hypertrophic cardiomyopathy, atrial septal defect, ventricular septal defect and arrhytmia. In this report, we present a 14-month-old female pediatric patient with hypertrophic cardiomyopathy, clinically and genetically diagnosed with Costello syndrome. The report also contains a review of recent related literature. © 2014 Türk Kardiyoloji Derne?i.tr10.5543/tkda.2014.55506info:eu-repo/semantics/closedAccessChildCostello syndromeHypertrophic cardiomyopathyArticle42876777025620341Q4