10 June 2017 : Case report
Perinatal Case of Fatal Simpson-Golabi-Behmel Syndrome with Hyperplasia of Seminiferous Tubules
Congenital defects / diseases, Educational Purpose (only if useful for a systematic review or synthesis)
Nives Zimmermann12ABEF, Jerzy Stanek13ABEF*DOI: 10.12659/AJCR.903964
Am J Case Rep 2017; 18:649-655
Abstract
BACKGROUND: Simpson-Golabi-Behmel syndrome (SGBS) is a rare X-linked recessive syndrome characterized by fetal overgrowth.
CASE REPORT: We present a case of a male infant with SGBS. Abnormal prenatal ultrasound (including congenital diaphragmatic hernia) prompted microarray testing of amniotic fluid cells, which showed deletion on chromosome Xq26.2 affecting the glypican-3 gene consistent with SGBS type I. The infant died six hours after birth and at autopsy showed features of SGBS, including macrosomia, organomegaly, diaphragmatic hernia with consequent pulmonary hypoplasia, cleft palate, large tongue with a midline groove, a supernumerary nipple, Meckel’s diverticulum, and abnormal phalanges. Additionally, we observed features that have previously not been described in SGBS, including testes with hyperplastic seminiferous tubules and Mullerian remnants, and placenta with incipient fetal thrombotic vasculopathy.
CONCLUSIONS: While most patients with SGBS type I survive into childhood or even adulthood, the severe course in our patient was ascribed to pulmonary hypoplasia secondary to the bilateral diaphragmatic hernia.
Keywords: Congenital Abnormalities, Hernia, Diaphragmatic, Testicular Diseases, Genetic Diseases, X-Linked
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