[Studies on internal pressure and oxygen tension of bone tumors and tumor conditions. II--Growth rate, internal pressure and oxygen tension in bone lesions].

Internal pressure and oxygen tension were measured in 24 patients with bone tumors and tumorous conditions. High internal pressure were observed in most of the rapidly growing lesions. The internal pressure of slowly growing and non-growing lesions were not significantly different from those of normal bone marrow. Oxygen tension was commonly higher in the rapidly growing lesions than in simultaneously obtained peripheral venous samples from the same patients. A high correlation was found between internal pressure and the growth rate of the bone lesions in this study. These data suggest that internal pressure and oxygen tension of the lesions reflect the degree of blood supply to the bone tumors and tumorous conditions.