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Diaphragmatic paralysis in a neonate with circumferential skin creases Kunze type
Gao Chun Fang1, Ding Kaiwei1, Zeng Lingkong1
1Department of Neonatology, Wuhan Children's Hospital of Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China.
Background:
A range of clinical features have been confirmed with heterozygous mutations in Beta Tubulin (TUBB), including skin creases, facial deformities, abnormal cerebral structures, and intellectual disability, and were defined as Circumferential Skin Creases Kunze type (CSC-KT).
Methods:
Clinical information was obtained retrospectively on a neonate hospitalized in the Neonatal Intensive Care Unit, Wuhan Children's Hospital. Genomic DNA was extracted from circulating leukocytes of the proband according to standard procedures.
Results:
The neonate presented dyspnea resulting from diaphragmatic paralysis, accompanied by other typical features of CSC-KT. Additionally, exome sequencing confirmed a new variant (NM_178,014. 4: c. 1114 A > G) in TUBB. We also summarized features described in previous cases, thus representing phenotype extension of CSC-KT.
Conclusion:
Our report is the youngest confirmed case, which could extend the current phenotype of CSC-KT as well as the clinical diagnostic approach.
