APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -A small bean-shaped structure that is part of the body’s immune system. Lymph nodes filter substances that travel through the lymphatic fluid, and they contain lymphocytes (white blood cells) that help the body fight infection and disease. There are hundreds of lymph nodes found throughout the body.

Detailed explanation-2: -Lymph nodes (or lymph glands) are small lumps of tissue that contain white blood cells, which fight infection. They are part of the body’s immune system and filter lymph fluid, which is composed of fluid and waste products from body tissues.

Detailed explanation-3: -A lymph node is a spherical or oval shaped organ. It is found in the circulation lymphatic vessels and serves as a biological filter of lymph. Lymph nodes can be found mainly in the armpit, in the groin, near the large vessels of the neck, in the chest or abdominal cavity.

Detailed explanation-4: -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.