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Congenital Insensitivity to Pain: A Case Study of a Rare Genetic Disorder

Overview
Journal Cureus
Date 2024 Oct 15
PMID 39403642
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Abstract

Congenital insensitivity to pain (CIP) is an exceedingly rare autosomal recessive condition caused by Nav1.7 loss-of-function mutations. We present a case of a patient with clinical symptoms compatible with CIP who had a homozygous probable pathogenic variation, which results in a premature stop codon. According to the recommendations of the American College of Medical Genetics and Genomics, it is classified as probable pathogenic (class 2). Early detection and treatment may aid in reducing mortality and morbidity as the signs and symptoms of CIP with dysmorphic features manifest early, typically at birth or during infancy. However, with careful medical attention, affected individuals can have longer life expectancies.

References
1.
Yang Y, Wang Y, Li S, Xu Z, Li H, Ma L . Mutations in SCN9A, encoding a sodium channel alpha subunit, in patients with primary erythermalgia. J Med Genet. 2004; 41(3):171-4. PMC: 1735695. DOI: 10.1136/jmg.2003.012153. View

2.
Cox J, Sheynin J, Shorer Z, Reimann F, Nicholas A, Zubovic L . Congenital insensitivity to pain: novel SCN9A missense and in-frame deletion mutations. Hum Mutat. 2010; 31(9):E1670-86. PMC: 2966863. DOI: 10.1002/humu.21325. View

3.
Kurban M, Wajid M, Shimomura Y, Christiano A . A nonsense mutation in the SCN9A gene in congenital insensitivity to pain. Dermatology. 2010; 221(2):179-83. PMC: 2969160. DOI: 10.1159/000314692. View

4.
Perez-Lopez L, Cabrera-Gonzalez M, Gutierrez-de la Iglesia D, Ricart S, Knorr-Gimenez G . Update Review and Clinical Presentation in Congenital Insensitivity to Pain and Anhidrosis. Case Rep Pediatr. 2015; 2015:589852. PMC: 4633556. DOI: 10.1155/2015/589852. View

5.
Majeed M, Ubaidulhaq M, Rugnath A, Eriator I . Extreme Ends of Pain Sensitivity in SCN9A Mutation Variants: Case Report and Literature Review. Innov Clin Neurosci. 2019; 15(11-12):33-35. PMC: 6380612. View