Question
The given image shows methylene blue being injected in the peritumoral region. Which of the given procedure is being performed?
| A. |
Sentinel lymph node biopsy
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| B. |
Tumour painting
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| C. |
Breast tattooing
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| D. |
Peritumour marking with dye
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Show Answer
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Correct Answer � A
Explanation
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|
Ans. A. Sentinel lymph node biopsy
- Sentinel node biopsy is based on the concept that an afferent lymphatic from a primary tumor drains first to the “‘ sentinel” node before reaching second-tier (non-sentinel) nodes in the regional nodal basin.
- Because this sentinel node is the first node encountered by tumor cells as they metastasize to the regional nodal basin.
- It represents the tumor status of the entire nodal basin. Selective identification removal.
- Histopathologic analysis of sentinel nodes, therefore, can be used to identify occult nodal metastasis without undertaking complete lymph node dissection.
