Annals of Indian Academy of Neurology
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Year : 2021  |  Volume : 24  |  Issue : 1  |  Page : 78-80

Chromosome 1p31.1 deletion syndrome: Limited expression

1 Department of Pediatrics, Kalinga Institute of Medical Sciences, Bhubaneshwar, Odisha, India
2 Department of Pediatrics, Pediatric Neurology Division, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India

Correspondence Address:
Dr. Prateek Kumar Panda
Department of Pediatrics, Pediatric Neurology Division, All India Institute of Medical Sciences, Rishikesh, Uttarakhand
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aian.AIAN_258_20

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Chromosomal microdeletion syndromes usually present with neurological abnormalities, developmental delays, and various systemic abnormalities. 1p31 microdeletion syndrome is one of the novel microdeletion syndromes that usually presents with developmental delay, intellectual disability, various craniofacial abnormalities, and other systemic abnormalities in a proportion of cases. NEGR1 and NFIA are few of the genes present in this locus responsible for these symptoms. However, none of the reported cases had only isolated intellectual disability. Here, we are reporting a case of 1p31 microdeletion syndrome with isolated moderate intellectual disability and hyperactivity in an 11-year-old boy. It is essential for clinicians to be aware of such an atypical presentation of 1p31.1 microdeletion syndrome, to maintain reasonable clinical suspicion in cases with unexplained intellectual disability.

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