The purpose of this report is to call attention to 2 unusual yet similar cases in which bizarre osseous changes and hyperreflexia were the outstanding features. We have been unable to find similar cases either in the literature or by consultation with persons versed in pathology of the bone. It is hoped that a presentation of the cases will call to light others and add to the understanding of this condition.
REPORT OF CASES
Case 1.—M. M. (fig. 1 A) was admitted to the medical service in January 1940, at the age of 4 years and 10 months, because of a peculiar waddling gait, easy fatigability and failure to gain in weight. She was referred from the orthopedic clinic, where she was first seen six months previously. Examination at that time revealed a thin, underweight child who walked with a mild right abductor and calcaneus limp, with a fairly broad