1. Hyperparathyroidism, a generalized skeletal disease, is a distinct disease entity due to a parathyroid adenoma. It is characterized by definite alterations in the calcium and phosphorus metabolism, symptoms, and signs. These findings have been presented as concisely as possible.
2. Data have been presented showing that arthritis is not associated with or due to hyperparathyroidism.
3. Paget's disease is not a generalized skeletal disease as is generalized osteitis fibrosa cystica. This fact, as well as certain clinical and metabolic data, clearly demonstrates that Paget's disease is not due to hyperparathyroidism.