IMMUNOLOGY

Detailed explanation-1: -Lymph nodes are small, oval-shaped glands that produce disease-fighting cells. They also act as filters for your lymph vessels. Your lymph vessels are a network of thin tubes that collect lymph fluid and circulate it throughout your body.

Detailed explanation-2: -Lymph nodes are small oval lumps of lymphatic tissue found at certain parts of the body. These lymph nodes filter out bacteria and disease cells from the lymphatic fluid before it is returned to the blood stream.

Detailed explanation-3: -A normal lymph node is ovoid in shape, hypoechoic to the adjacent muscle and frequently contains an echogenic fatty hilum (Fig. 1a). The hilum is a linear, echogenic, non-shadowing structure that contains the nodal vessels and it appears continuous with the fat around the node.

Detailed explanation-4: -Lymph nodes are located in many parts of the body, including the neck, armpit, chest, abdomen (belly), and groin. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid.