Blocks for Histology Figures 113b 114b

• sample tumour, tumour edge, and tumour and nearest margin(s) (minimum 4-5 blocks).

• sample areas suspicious of DCIS.

• sample surrounding breast tissue (2 blocks).

• sample the nipple in mastectomy specimens and tumour-involved skin or muscle.

• in completion mastectomy specimens, sample cavity wall (3-4 blocks).

• count and sample all axillary lymph nodes and label separately where indicated (levels I, II and III).

• a representative complete section of any grossly involved lymph node is adequate.

• lymph nodes over 5 mm in maximum size should be sliced at approximately 3 mm intervals perpendicular to the long axis.

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