Resident memory T cells in lymph node. (IMAGE) Dartmouth-Hitchcock Medical Center Caption Microscopic image of tumor-specific resident memory T cells (white) stationed throughout a mouse tumor-draining lymph node. Researchers have found this novel population of long-lived T cells that stay in lymph nodes where they provide protection against melanoma. Credit Dartmouth's Norris Cotton Cancer Center. Usage Restrictions With permission from Mary.Jo.Turk@dartmouth.edu. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.