[Zonography in solitary bone cysts].

The zonography method is gaining more and more users today and arouses a definite interest of specialists in medicine. This is due to the peculiarities of the method and the tremendous clinical possibilities which make it possible to improve and accelerate the diagnosis not only of diseases of the lungs and kidneys, but also of some segments of the bone system. The availability of zonography allows it to be used successfully in the diagnosis of various, pathological among others, types of bone fractures, tumors of the skeleton and, therefore, makes it possible to watch the reparative manifestations and the development of the process. Radio-sonographic comparisons of long tubular bones and large joints in 2,500 cases made it possible to reveal in 15 patients, aged from 17 to 80 years, solitary rarely encountered bone cysts not complicated by fractures. Their existence was suspected due to scrupulous collection of the medical history with consideration for the localization of the pain syndrome, in the absence of abnormalities in the blood and urinary tests. A fine, ++non-ectatic, regularly sclerosed capsule was seen in the 15 cases, the septa between the cavities were clearly contrasted and demonstrated better than on ordinary radiographs, and there were no infractions or pathological fractures.