[The necessity for the combined use of the ultrasonic study of the abdominal cavity organs and of the histomorphometry of the bone marrow in chronic myeloleukemia].

Forty-one patients with chronic myeloid leukemia (CML) were divided into 3 groups: 13 patients in a chronic phase prior to cytostatic treatment group 1; 17 patients in a chronic phase treated with myelosan group 2; 11 patients in a blast transformation phase group 3. All of them underwent abdominal sonography in line with marrow histomorphometry. Ultrasound investigation is thought indispensable in examination of CML patients as it registers negligible enlargement of the liver and spleen and provided their echo structure. It makes possible to trace stages of the tumor process development. CML involves in the pathological process the kidneys as shown by changes in the echo pattern, concrements are often formed in the pelvicalyceal system. Group 1 patients demonstrated reduced area of the bone tissue by morphometrical evaluation of the bone marrow. This means prevalence of osteolysis in CML onset. In group 3 patients this value is higher indicating osteosclerosis predominance. Comparison of the ultrasonic and histomorphometric data suggest that enlargement of the spleen and liver with diffuse vegetations of the connective tissue and their fibrotic lesion of the parenchyma correlated with the severity dissemination of hemopoietic tissue collagen fibrosis. It is evident that CML is characterized by fibrosis involving simultaneously bone marrow, splenic and hepatic parenchyma.