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  • Title: Congenital vertical talus in four generations of the same family.
    Author: Levinsohn EM, Shrimpton AE, Cady RB, Packard DS, Hootnick DR.
    Journal: Skeletal Radiol; 2004 Nov; 33(11):649-54. PubMed ID: 15368082.
    Abstract:
    OBJECTIVE: This paper presents four generations of a family with radiographically demonstrated congenital vertical talus (CVT) in whom a HOXD10 gene mutation was identified. Some members of the family with this mutation exhibited cavo-varus foot deformity consistent with a Charcot-Marie-Tooth (CMT)-like disorder. DESIGN AND PATIENTS: Physical examination was performed on nearly all of the affected and unaffected family members. DNA was extracted from blood obtained from 14 subjects who showed radiographic and clinical features of CVT (two of whom also had CMT), from two subjects with features of CMT but not CVT, and from 20 related family members who were clinically normal. RESULTS: Radiographs show the appearance of uncorrected CVT in infancy, in childhood, and in adulthood. DNA analysis revealed a mutation in a HOXD10 gene located on chromosome 2 in all of the affected but none of the unaffected family members. CONCLUSION: There is an autosomal-dominant-inherited mutation with complete penetrance which is found in all members of a pedigree with CVT, some of whom exhibit a CMT-like foot disorder. Radiologic findings vary depending on the severity of involvement, treatment provided and age of the patient.
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