Brittle Bone Disease: A Case Report.

Area of Science:

• Genetics
• Pediatrics
• Rare Diseases

Background:

• Osteogenesis Imperfecta (OI) is a rare genetic disorder with significant variability in clinical presentation.
• A classification system for OI subtypes exists, based on clinical features and disease severity.
• Early identification and diagnosis are critical for managing OI and supporting affected families.

Observation:

• A newborn presented with bilateral clavicle fractures at birth and later developed hip pain and edema.
• Clinical examination revealed signs suggestive of bilateral femur fractures.
• The infant's symptoms and fracture history raised suspicion for OI, especially given a history of similar cases in the region.

Findings:

• Genetic analysis identified pathogenic variants in the WNT1 gene, confirming a diagnosis of Osteogenesis Imperfecta type XV.
• Physical abuse was considered but ruled out due to known family history and lack of other indicators.
• The presence of two other regional cases of OI type XV supported the diagnostic suspicion.

Implications:

• This case underscores the importance of considering genetic disorders like OI in newborns with fractures, even in the absence of abuse indicators.
• Early diagnosis of OI type XV through genetic testing allows for timely intervention and management.
• Awareness of regional disease prevalence can aid in prompt diagnosis of rare genetic conditions.