• Meng-Ju Melody Tsai, Ni-Chung Lee, Yin-Hsiu Chien, Wuh-Liang Hwu, and Yi-Ching Tung.
• Department of Pediatrics, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan.
• J Formos Med Assoc. 2022 Apr 1; 121 (4): 856-860.

AbstractShort stature and intellectual disability are two of the major components of many dysmorphic syndromes. Jansen-de Vries syndrome (JDVS) is a rare syndromic disorder that was discovered recently using next-generation sequencing. It is characterized by hypotonia, developmental delay, a dysmorphic face, short stature, and high pain threshold and is caused by the variants of the protein phosphatase magnesium-dependent 1D (PPM1D) gene. Here, we report the first two cases of PPM1D mutations in Taiwan; both had de novo variants in exon 6. Both presented with short stature, developmental delay, and dysmorphic faces. In addition to the characteristics listed above, syndactyly was noted in one. Genetic studies should be considered when approaching a patient with growth retardation, intellectual disability, and other major or minor dysmorphisms.Copyright © 2021 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.

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