Colorectal - Pathology

This is the site specific section for additional colorectal cancer specific data items to be recorded. These will be aligned within the schema to form a single report.

May be up to one occurrence per pathology report (0..1) 

Note the following data item has been retired from v4.0:

• Grade of Differentiation (Colorectal Pathological)

Positive Proximal or Distal Resection Margin

Record whether the proximal or distal resection margins were involved. If the minimal distance from the cut margin is less than or equal to 1 mm the margin is considered ‘involved’.

Note:

• ‘8 - Not submitted by pathologist’ is a new attribute for v4

Distance to Circumferential Margin

Record the distance from the outer margin of the tumour to the closest non-peritonealised circumferential resection margin in mm. rectal cancers only.

Plane of Surgical Excision

For rectal cancers only. This is the quality of the surgical excision as seen by the pathologist. This grades the resection on its worst plane.

Distance From Dentate Line

For abdominoperineal excision specimens only. Record the distance of the tumour from the dentate line in mm measured on the gross specimen.

Distance Beyond Muscularis Propria

Maximum distance of spread beyond muscularis propria in mm. If there is doubt about the sites of the muscularis propria estimate the distance as accurately as possible.

Response to Preoperative Therapy

If preoperative therapy was given what was the response.

Notes:

• ‘4’, ‘5’, ‘6’, ‘7’ have been removed from the data set from v4
• ’08’, ‘09’, ‘10’, ‘11’ and ‘97’ are new attributes for v4

Status of Circumferential Excision Margin

Record if the edge of the tumour is 1 mm or less from the circumferential resection margin (i.e. margin involved) circumferential margin refers to the completeness of the surgeon's resection margin in the opinion of the histopathologist. In parts of the colon where it is completely surrounded by peritoneum, recording of the Circumferential Resection Margin (CRM) is not appropriate.