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
B. Tumour painting
C. Breast tattooing
D. Peritumour marking with dye
Show Answer
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Correct Answer » A
Explanation
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Ans. A. Sentinel lymph node biopsy
(Ref: Master of surgery,6’t’ ed., ch-49, pg. 591-594)
- Sentinel node biopsy is based on the concept that an afferent lymphatic from a primary tumour drains first to the “‘sentinel” node befbre reaching second-tier (non-sentinel) nodes in the regional nodal basin.
- Because this sentinel node is the first node encountered by tumour cells as they metastasize to the regional nodal basin.
- It represents the tumour status of the entire nodal basin. Selective identification removal.
- And histopathologic analysis of sentinel nodes therefore can be used to identify occult nodal metastasis without undertaking complete lymph node dissection.
