Osteogenesis imperfecta type V: About a clinical case.

Area of Science:

• Genetics
• Orthopedics
• Rare Diseases

Background:

• Osteogenesis imperfecta (OI) is a rare inherited connective tissue disorder characterized by bone fragility and recurrent fractures.
• Common OI types (I-IV) involve COL1A1 and COL1A2 genes, but new genetic causes are continually being discovered.
• OI type V, linked to IFITM5 gene mutations, presents unique clinical features.

Purpose of the Study:

• To present a case study of a patient with a de novo mutation in the IFITM5 gene.
• To further elucidate the genetic basis and clinical manifestations of Osteogenesis Imperfecta type V.

Main Methods:

• Genetic analysis to identify mutations in the IFITM5 gene.
• Clinical evaluation of patient's bone fragility, fracture history, and characteristic OI type V features.
• Review of existing literature on IFITM5 mutations and Osteogenesis Imperfecta type V.

Main Results:

• Identification of a de novo mutation in the IFITM5 gene in the presented patient.
• The patient exhibited hallmark features of OI type V, including hypertrophic callus, interosseous membrane calcification, and hyperdense metaphyseal bands.
• This case reinforces the role of IFITM5 in the pathogenesis of Osteogenesis Imperfecta type V.

Conclusions:

• The IFITM5 gene is a significant cause of Osteogenesis Imperfecta type V.
• Genetic testing for IFITM5 mutations is crucial for diagnosing OI type V.
• Understanding these mutations aids in managing and potentially treating this rare bone disorder.