Zhu-Tokita-Tachenouchi-Kim syndrome (ZTTK) is a recently recognized malformation syndrome presenting with craniofacial dysmorphism, developmental delay/intellectual disability, seizures, anomalies involving brain white matter, and other body-organs. In humans, the disorder is linked to the loss-of-function variants in the SON gene (MIM# 617140). Herewith, a new case of this syndrome is reported in a 2-year-old Caucasian child who presented the classical clinical features of the ZTTK syndrome in association with hydrocephalus and Chiari malformations type 1 an anomaly previously unreported. Exome analysis showed a de novo heterozygous variant in SON gene. Literature review of similar cases is reported.

Novel malformations: Chiari type 1 and hydrocephalus in Zhu-Tokita-Takenouchi-Kim syndrome and novel SON variants

Pavone, Piero;Saia, Federica;Pappalardo, Xena;Prato, Adriana;Rizzo, Renata
2022-01-01

Abstract

Zhu-Tokita-Tachenouchi-Kim syndrome (ZTTK) is a recently recognized malformation syndrome presenting with craniofacial dysmorphism, developmental delay/intellectual disability, seizures, anomalies involving brain white matter, and other body-organs. In humans, the disorder is linked to the loss-of-function variants in the SON gene (MIM# 617140). Herewith, a new case of this syndrome is reported in a 2-year-old Caucasian child who presented the classical clinical features of the ZTTK syndrome in association with hydrocephalus and Chiari malformations type 1 an anomaly previously unreported. Exome analysis showed a de novo heterozygous variant in SON gene. Literature review of similar cases is reported.
2022
Chiari malformation type 1
SON gene
Zhu‐Tokita‐Tachenouchi‐Kim syndrome (ZTTK)
developmental delay
hydrocephalus
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/547868
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