Table of Contents
How many groups of axillary lymph nodes are there?
five groups
[2] The axillary lymph nodes arrange into five groups based on their anatomical relations. Collectively, they drain the wall of the thorax, breast, arm, and upper abdominal wall above the umbilicus.
What are the lymph node groups in the axillary region?
There are five axillary lymph node groups, namely the lateral (humeral), anterior (pectoral), posterior (subscapular), central and apical nodes. The apical nodes are the final common pathway for all of the axillary lymph nodes.
What are the four groups of axillary nodes in the breast tissue?
Central axillary nodes Lying deep to the pectoralis minor muscle within adipose tissue of the axilla, they contain about 4-5 nodes and receive drainage from the breast, the brachial group, the pectoral group, and the subscapular group.
Which of the following groups of lymph nodes does not belong to the axillary region?
Infraclavicular (deltopectoral) group: These nodes are not strictly axillary nodes because they are located outside the axilla. They lie in the groove between the deltoid and pectoralis major muscles and receive superficial lymph vessels from the lateral side of the hand, forearm, and arm.
What is the difference between axillary and sentinel lymph nodes?
Before or during this procedure, a radioactive substance (called a tracer) and/or a blue dye is injected into the breast. The first axillary lymph nodes to absorb the tracer or dye are called the sentinel nodes. These are also the first lymph nodes where breast cancer is likely to spread.
What are the 5 axillary lymph nodes?
They are about 1cm in size and are arranged into five groups: subscapular axillary (posterior), apical (medial or subclavicular), pectoral axillary (anterior), brachial (lateral), and central lymph nodes. The subscapular axillary lymph nodes are located on the lower part of the armpit’s posterior (rear) wall.
How are lymph nodes categorized?
Lymph nodes are classified by their location, including: Axillary lymph nodes (armpits) Cervical lymph nodes (neck) Inguinal lymph nodes (groin)
What are the major groups of lymph nodes?
Lymph nodes are clustered throughout the body, including the neck (cervical lymph nodes), groin (inguinal lymph nodes), armpits (axillary lymph nodes). There are also internal lymph nodes in the abdomen (mesenteric and retroperitoneal), chest cavity (mediastinal), and lower abdomen (pelvic).
What is the difference between a sentinel node and other lymph nodes?
During this procedure, the healthcare provider removes the sentinel nodes and sends them to a lab to test for cancer cells. Sentinel nodes are the first lymph nodes where cancer cells might spread from a tumor. Lymph nodes are small organs that “filter” fluid in the body and help protect you from illness.
What are the major groups of lymph nodes in human body?
What is the difference between a sentinel lymph node and axillary lymph node?
Breast cancer can spread to the nearby tissue in the underarms (axillary). This tissue is known as lymph nodes. The first node in the group is known as a sentinel node. If no cancer is found in the first node, the cancer has probably not spread to other nodes in the area.