Case Report and literature review: Delayed diagnosis of ARCL1B due to a newly reported homozygous mutation c.464A>C p. (Tyr155Ser) in the EFEMP2 gene
2024

Case Report of a Rare Genetic Condition in a Chinese Infant

Sample size: 1 publication Evidence: low

Author Information

Author(s): Ouyang Lixue, Yang Fan, Duan Hongyu, Wang Chuan

Primary Institution: West China Second University Hospital, Chengdu, Sichuan, China

Hypothesis

Can a newly reported mutation in the EFEMP2 gene lead to a better understanding and diagnosis of ARCL1B in the Chinese population?

Conclusion

The identified EFEMP2 gene mutation expands the mutation spectrum and highlights the need for increased awareness of ARCL1B among clinicians.

Supporting Evidence

  • The patient was initially misdiagnosed with Takayasu arteritis.
  • Whole exome sequencing revealed a novel homozygous mutation in the EFEMP2 gene.
  • This is the first documented case of ARCL1B in the Chinese population.
  • The mutation has a high probability of pathogenicity according to molecular predictions.

Takeaway

A baby in China had a rare genetic condition that was hard to diagnose, but doctors found a new mutation in his genes that helped them understand his illness better.

Methodology

Whole exome sequencing was performed to identify the genetic mutation.

Potential Biases

Potential bias in diagnosis due to the rarity of the condition and initial misdiagnosis.

Limitations

The study is based on a single case report, limiting the generalizability of the findings.

Participant Demographics

7-month-old male infant from the Chinese population.

Digital Object Identifier (DOI)

10.3389/fgene.2024.1453195

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