[Primary diagnosis of bone tumor by sonography]

On a 23-year-old patient with an unclear clinical picture the sonographic examination of bone and soft tissue enabled an early detection of a pathological process, thus helping to direct the further use of radiological diagnostics. Unfortunately, the patient could not be helped due to the rapid onset of the diseases. But the case underscores the useful intervention of sonographic examination in the diagnosis of tumors located in locomotor system.