Blocks for Histology Figure

• sample by circumferential transverse section the proximal cystic duct limit.

• sample the cystic duct lymph node and any other separately submitted named nodes.

• serially transverse section the gall bladder at 3-4 mm intervals with either a sharp knife or scissors.

• usually one broken transverse ring will suffice for histology in the absence of any macroscopic abnormality.

• sample gross lesions with multiple transverse blocks as indicated, e.g., ulceration, perforation, tumour, abscess, polyps, wall thickening. Demonstrate tumour in relation to the serosa and adventitia including its resection margin.

3. Open with scissors in the long axis

Figure 8.2. Opening and transverse sectioning the gall bladder.

3. Open with scissors in the long axis

2. Bisect cystic duct node

1. Transverse section the cystic duct proximal limit

Figure 8.2. Opening and transverse sectioning the gall bladder.

• if part of a radical cancer resection - describe and measure the attached segments of liver and bile ducts, and the relationship of any tumour to them and their resection limits. Sample multiple blocks to demonstrate these relationships. Sample all regional lymph nodes.

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