A case of 17-year-old boy who had developed multiple enchondroma since his third year of age in the phalanges of the hands and feet, and many other bones of the extremities, ribs, scapulas, vertebrae and pelvis was reported. In this case a specific findings was obtained roentogenologically, and otherwise no abnormal symptoms were observed in the auto-nomic nervous, endocrine and cardiovascular systems. The blood examination revealed slight increases in lymphocytes count, hemoglobin content, acid phosphatase and calcium concentration, as well as a marked decrease in alakline phosphatase. This case was to be diagnosed as a VOLL, type of Kienböck. Roentgenogically the epiphyseal line was found to be completely closed, and the growth of the chondroma was thought to be at a standstill, displaying no tendency to relapse, hence the extirpation of the tumors was attempted for correction of the deformity. The process of the disease is still being followed.
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