Sentinal Lymph Node Biopsy

Question 1

First cancer in which SLNB described

Answer 1

Penile cancer (cabana)

Question 2

Other cancer in which sentinel lymphnode biopsy is used

Answer 2

Malignant melanoma
Breast
Vulvar cancer
Head and neck cancers

Question 3

Indication for SLNB in breast cancer

Answer 3

Non palbable lymphnode (N0 axilla)

Question 4

SLNB negative

Answer 4

No axillary clearnace

Question 5

SLNB positive

Answer 5

Axillary lymph node dissection

Question 6

Technique to identify sentinal lymph node

Answer 6

Methylene blue(mc)
Patent blue 5
Isosulphan blue

1-1.5 cc dye injected in peri areolar region

Question 7

Complications of blue dye technique

Answer 7

Skin tattooing(mc)
Skin necrosis
Anaphylaxis
Bluish or greenish urine discolouration

Question 8

Radionucleotide technique

Answer 8

Gamma camera or geeger counter

Inject tc 99 sulphur colloid

Hot lymphnode is sentinal

Question 9

Best technique for SLNB

Answer 9

Combined (bluedye and radionucleotide)

Question 10

Sentimag

Answer 10

Inject ferric oxide compound in peri areolar

Magnetic scanner to detect lymphnode

No radiation exposure

Question 11

What majority of sentinal lymph nodes are present in

Answer 11

Level 1 of axilla

Question 12

Most common nerve injured during SLNB

Answer 12

Intercosto brachial nerve