Familial mutation in Caffey disease with reduced penetrance: A case report

Expanding the Clinical Spectrum of Osteogenesis Imperfecta Type V: 13 Additional Patients and Review

Osteogenesis imperfecta (OI) is an inherited connective tissue disorder characterized by bone fragility and is characterized by clinical and genetic heterogeneity. Previous studies showed that the same mutation (c.-14C> T) of the IFITM5 gene is responsible for autosomal dominant OI type V. However, the mutation has a variable expressivity. Clinical heterogeneity has been recognized in OI type V. In this study, we investigated 13 individuals with molecularly confirmed OI type V from seven Chinese families and explored the genotype-phenotype relationship. Increased callus formation is not observed in all individuals, and several novel clinical features were described: joint contractures (three individuals) and unexplained hip arthritis (six individuals). Significant clinical variability was observed even within families. Specific facial features were observed in six individuals from two families consistent with the facial features associated with OI type V reported so far in the literature. Interestingly, we report the process of hypertrophic callus formation in detail for the first time, and in five individuals with hyperplastic callus, increased erythrocyte sedimentation rate (ESR) and levels of C-reactive protein (C-RP) were measured, suggestive of inflammatory activation.

Unusual findings on infantile cortical hyperostosis: A case report

BACKGROUND

Caffey's disease is a rare syndrome, usually self-limiting, affecting newborn and young infants. On radiological exams, the cortical hyperostosis is always present, associated or not to soft tissue swelling. Other radiographic presentations are described as lytic areas.

AIM

This article has the objective to relate computed tomography (CT) findings of Caffey's disease, where lytic lesion on mandibular angle was the principal radiological manifestation.

METHODS AND RESULTS

Three-dimensional reconstructions were performed to demonstrate the initial aspect and the healing process.

CONCLUSION

This report shows unusual radiological characteristics of Caffey's disease on CT and its progressive resolution.