A number of studies have been reported on the fate of radiocalcium (Ca-45) in humans (1-12), but none have included chemical analyses of the concentration of Ca-45 in the skeleton and in such tissues as liver, brain, or intestinal tract. We are now reporting the results of a metabolic study with Ca-45 performed on a 10 year old patient with terminal gargoylism. The analyses, of periodic samples of serum, urine, cerebrospinal fluid, and feces obtained during the patient's illness and of various tissues removed at necropsy 16 days after the administration of Ca-45 have made it possible to formulate a relatively complete picture of the calcium metabolism of this individual, although the lack of comparable information makes it difficult to evaluate whether and how gargoylism modified the calcium metabolism of our patient.Gargoylism is now well recognized clinically (13), but its pathogenesis is largely unknown. Evidence is accumulating (14)(15)(16)(17)(18)(19) that calcification is also defective in this condition.Dawson (17) has reviewed the histological changes seen in the bones of patients with gargoylism and has concluded that the changes are dystrophic and are probably of direct metabolic origin. However, no metabolic studies have been reported. It seemed of interest, therefore, to study in detail the calcium metabolism of a patient with terminal gargoylism.
MATERIAL AND METHODSDescription of patient. The patient was a male child, 9 years 10 months old, 137 cm. high, who weighed 16.4 Kg. He had been institutionalized since the diagnosis of the disease almost five years earlier. When the study was initiated, the disease had progressed to a point where the boy's life expectancy appeared short. The patient was almost completely unaware of his surroundings, had lost his ability to communicate except by a bird-like whine, and showed no response to sounds. He appeared incapable of any muscular control, was incontinent of urine and feces, and had to be handled like a 3 months old baby. His arms and legs were flexed, with ankylosis of the joints. The hands were clenched, the fingers showed clubbing, and the skin was taut and shiny. There was general hirsutism.Design. Although the patient was on the danger list, his condition had remained unchanged for several weeks preceding the study. It was planned to follow the course of the injected Ca-45 intensively during the first five days, then at weekly, and later at monthly intervals. The death of the patient on Day 16 prevented an extended follow-up.Dietary regimen. Before the initiation of the study and throughout its duration, the patient was spoon-fed with commercial baby foods, baby cereals, and milk. No attempt was made to regulate his intake. During the course of the study, i.e., on days when specimen collection was carried out, food equivalent to that fed to the patient was collected by having the nursing personnel place in a collection jar quantities of food identical to those fed the patient. His calcium intake was analyzed as 3