[Acute abdominal signs of B-cell non-Hodgkin lymphoma at a young age].

In this report the authors present the case of a highly malignant non-Hodgkin lymphoma in a young operated patient. They call attention to the gastrointestinal form which is difficult to diagnose. In this case the lymphoma was detected only by laparotomy.

[Recent changes in breast cancer surgery].

After former radical extensions the breast cancer surgery now tends to accept the necessary minimum principle. There are surveys which rated the local recurrence to the width of the intact margin around the tumour; they are aware of the decisive role of extensive intraductal component to have an influence on the local recurrence. Leaving out irradiation in selected groups is a part of the less aggressive tendency of breast cancer treatment.

Experimental retroperitoneal infection.

A bacterial inoculum was positioned intraperitoneally and retroperitoneally in animals who had been treated with various antibiotic programs. The results indicate that the retroperitoneal tissue is more resistant to severe infectious complications than the general peritoneal cavity.