[Congenital partial gigantism of the upper extremities in children].

Angio-and phlebography, as well as pathomorphological studies were made on epiphyseal cartilaginous plate, diaphyseal bone tissue and skin of patients with partial gigantism of upper extremities. Significant developmental anomalies were found in the formation of palmar arches and digital arteries, as well as hypoplasia and aplasia of deep brachial and antebrachial veins. Light and electron microscopy revealed epiphyseal plate dystrophy and dysplasia, tubular bone osteoporosis, subcutaneous fat hyperplasia. The data obtained suggest a pathogenetic relationship between the vascular formation and the development of some malformations and growth abnormalities of upper extremities.