[Lymphogranulomatosis: diagnosis by conventional roentgen studies and computed tomography].

Thanks to computed tomography the diagnostics of Hodgkin's disease has improved for both the nodal and the extranodal affection. CT is of special importance to determine an extension along the thoracic wall and to assess a pericardial and vascular invasion. All lymph node groups are visualized by computed tomography, but the structure of the lymph nodes cannot be assessed. In a series of 68 patients suffering from Hodgkin's and non Hodgkin's lymphomas, a retroperitoneal lesion was found by CT in 77% and by lymphography in 90% of cases. Sonography is considered as a complementary method. CT is not very sensitive in case of a spleen and liver lesion. Percutaneous biopsy is recommended for the diagnosis of recurrences and for the assessment of residual tumor tissue.