[Hodgkin lymphoma].

In the newly published WHO classification for tumors of the hematopoietic and lymphoid tissues, Hodgkin's disease has been renamed Hodgkin lymphoma, which reflects the recent confirmation of its germinal center B-cell origin. In the classification, nodular lymphocyte-predominant Hodgkin lymphoma has been added as a new entity with an excellent prognosis. For management of the disease, a risk-adapted classification is employed without staging laparotomy.

[Development of stereotactic irradiation system of body tumors under respiratory gating].

Stereotactic radiosurgery for body tumors is hampered by the difficulties in body fixation and respiratory motions of the tumor. We have developed a Microton-based system for the stereotactic irradiation of body tumors, which delivers radiation at a predetermined respiratory phase. The patients are fixed non-invasively in the custom-made bed, and CT images are obtained.

Postoperative radiotherapy for patients with completely resected thymoma: a multi-institutional, retrospective review of 103 patients.

Background: Optimal management of postoperative radiotherapy for patients with completely resected thymoma remains controversial. This study was conducted to assess the efficacy of postoperative mediastinal irradiation in patients with completely resected thymoma.

Methods: The records of 103 patients with completely resected thymoma who received postoperative mediastinal irradiation during the period between 1979 and 1998 were reviewed.