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What is the significance of sentinel lymph node?
A sentinel lymph node is the first lymph node that drains a cancer. If a cancer has not spread to the first draining lymph node near a cancer, there is a high likelihood it has not spread elsewhere.
Movable lump behind ear?
A lump behind the ear may possibly be a swollen lymph node. It can also be a benign tumor, a cyst, or acne.
Implication of a Positive sentinel node?
A positive sentinel node suggests that cancer cells have spread from the primary tumor to nearby lymph nodes. Further evaluation and treatment, such as lymph node dissection and adjuvant therapy, may be needed to determine the extent of spread and reduce the risk of recurrence.
What distinguishes a sentinel node from other nodes?
A sentinel lymph node is the first lymph node that drains a cancer. If a cancer has not spread to the first draining lymph node near a cancer, there is a high likelihood it has not spread elsewhere.
What is supraclavicular lymphnode mass?
It can be caused by a lymph node that is swollen from tumor cells that have metastasized. Can be from from a tumor in the lungs.
What can occur if the melanoma is being spread through the lymph system?
If the melanoma is spreading through the lymph system, some of the tumor may grow there, resulting in a nodule part way between the primary site and the original lymph node.
What is sentinel lymph node mapping and biopsy?
A new technique called sentinel lymph node mapping and biopsy often eliminates the need for removing some or all lymph nodes by testing the first lymph node for cancer.
When is a full resection of the lymph node group completed following a sentinel mapping procedure?
If they show microscopic deposits of tumor, then the full resection of the lymph node group may be completed.
What is Stage III rectal cancer?
Any depth or size of tumor associated with regional lymph node involvement
What does lymph node reactive changes only mean?
Generally, when someone describes lymph nodes as "reactive", they mean that the lymph node abnormality / enlargement is caused by a benign condition (such as an irritant or infection or inflammation) and not a malignancy. It is not always possible to determine to what a node is "reacting", but use of the wording "reactive" generally connotes a benign / non-malignant process.
What occurrence led to the development of the technique of sentinel lymph node biopsy?
the discovery that the human lymphatic system can be mapped with radioactive dyes, and that the lymph node(s) closest to a tumor serve to filter and trap cancer cells.
Is a diagnostic procedure in which all of the lymph nodes in a major group are removed to determine the spread of cancer?
A lymph node dissection
