X-linked fetal cardiomyopathy caused by a novel mutation in the TAZ gene.
OBJECTIVES: Mutations in the tafazzin ( TAZ) gene at chromosomal locus Xq28 are responsible for Barth syndrome (BTHS), X-linked endocardial fibroelastosis (EFE), X-linked fatal infantile dilated cardiomyopathy (CMD3A), and familial isolated noncompaction of left ventricular myocardium (INVM). This evaluation was performed to determine if a known familial TAZ gene mutation might present with abnormal fetal cardiac pathology findings as early as the second trimester of pregnancy. METHODS: Prenatal diagnosis revealed that a male fetus was positive for a known familial arg94his TAZ gene mutation. An elective termination with subsequent fetal pathology examination was performed at 18 weeks' gestation. RESULTS: Fetal examination revealed cardiomegaly, EFE, and subendocardial vacuolization of the myocytes. CONCLUSION: Characteristic cardiac pathology findings of a TAZ gene mutation are seen in a fetus at 18 weeks' gestation. To our knowledge, this case provides the earliest fetal pathologic description of a TAZ cardiomyopathy. Copyright (c) 2006 John Wiley & Sons, Ltd.[1]References
- X-linked fetal cardiomyopathy caused by a novel mutation in the TAZ gene. Brady, A.N., Shehata, B.M., Fernhoff, P.M. Prenat. Diagn. (2006) [Pubmed]
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