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What is lymphiscintigraphy?
Lymphoscintigraphy (sentinel lymph node mapping) is an imaging technique used to identify the lymph drainage basin, determine the number of sentinel nodes, differentiate sentinel nodes from subsequent nodes, locate the sentinel node in an unexpected location, and mark the sentinel node over the skin for biopsy.
Concern about resectioning regional lymph nodes has led to what intermediary procedure?
Questions related to which patients should have resection of regional lymph nodes have led to an intermediary procedure known as sentinel node mapping and biopsy.
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 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.
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 learned by the procedure known as sentinel node mapping?
These sentinel nodes are thus identifiable and are the most likely to harbor any regional metastatic disease. If these nodes alone are biopsied and are normal, the rest of the lymph node group can be spared.
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.
By what measure does sentinel lymph node biopsy have a significantly lower rate of complications than axillary lymph node dissection?
One study found that only 2.6% of patients who had SLNB developed lymphedema, compared to 27% of patients who had ALND.
What kind of biopsy is performed at the beginning of breast cancer treatment?
Sentinel-node biopsy
What is the cpt code for superficial needle biopsy of inguinal lymph node?
The CPT code for superficial needle biopsy of inguinal lymph node is 38505.
What are possible causes of a false negative laboratory report after a sentinel lymph node biopsy?
poor timing of the dye injection, the way in which the pathologist prepared the tissue for examination, or the existence of previously undiscovered sentinel nodes.
By what stages was sentinel lymph node biopsy developed?
A technique that uses blue dye to map the lymphatic system was developed in the 1980s and applied to the treatment of melanoma in 1989
