Lymph node
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A lymph node, or lymph gland, is a kidney-shaped organ of the lymphatic system and the adaptive immune system. A large number of lymph nodes are linked throughout the body by the lymphatic vessels. Th
Cross-section of a lymph node with sections labelled.1) Capsule; 2) Subcapsular sinus; 3) Germinal center; 4) Lymphoid nodule; 5) Trabeculae
Labeled diagram of human lymph node showing the flow of lymph
A still image from a 3D medical animation showing enlarged lymph nodes
Micrograph of a mesenteric lymph node with adenocarcinoma
Sentinel lymph node
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Lymph nodes are small organs that play a critical role in the human immune system. Located throughout the body, they filter bodily fluids for harmful substances.
A blue stained (with isosulfan blue) sentinel lymph node in the axilla
A micrograph showing an adenocarcinoma of the breast (dark pink) in a lymph node (purple) and extending into the surrounding fat (white, chicken-wire appearance). H&E stain.