Lymph Node Identification (IMAGE) Optica Caption The researchers tested the ability of their infrared camera to identify lymph nodes in patients with breast cancer. Lymph nodes are one of the primary places where breast cancer spreads. The camera detects indocyanine green fluorescent dye, which accumulates passively in the lymph nodes. Credit Missael Garcia, Julie Margenthaler and Viktor Gruev Usage Restrictions None License Licensed 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.