Examinations of 65 patients with Hodgkin's disease (n = 61) and with non-Hodgkin's (n = 4) by x-ray method, computer-aided tomography, and sonography were carried out and the potentialities of sonography in detection of the lymph node lesions in lymph collectors above the level of the diaphragm analyzed. Sonography helped detect signs of envolopment of small palpated and nonpalpated lymph nodes, differentiate individual nodes, conglomerations, specify the volume an localization of changes in the mediastinal lymph nodes and in the adjacent anatomical structures, and choose an approach to collection of material for morphologic examination. Ultrasonic examination is informative as a method for monitoring the treatment results and for disease recurrences during the period of postirradiation changes in the mediastinum.
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