Lymph node metastases of EMT6 tumour in nude mice

Summary Metastatic axillary lymph nodes following the injection of EMT6 tumour cells were observed in athymic nude mice, more often in female animals, and had a rapid growth rate. These metastases did not develop in syngeneic hosts. The latency of their appearance was inversely related to the number of injected cells.We wish to thank Charles Gosse for breeding, maintenance and supply of the animals.