SEER Inquiry System - Question 20031199 Details

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Question 20031199

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References:

#1: Gastroenterology, 89 (2), 328-36. Aug 1985

#2: 2004 SEER Manual, C-222. Appendix C

Question:

CS Extension/Polyp--Colon: How is CS extension coded for tumor invasion described as "Haggitt level 4"? See Description.

Discussion:

Polypectomy specimen revealed adenocarcinoma of the rectum in a tubulovillous adenoma. Per path extent of invasion was Haggitt level 4. The micro description of the tumor stated that there was malignant epithelial neoplasm in colonic mucosa.

Answer:

In a 1985 Gastroenterology journal article, Haggitt described five levels of polyp invasion:

Level 0-confined to mucosa

Level 1-head

Level 2-Neck

Level 3-Stalk

Level 4-Submucosa of underlying colonic wall.

For cases diagnosed 2004 and forward:

Use the best information available to code CS extension. The following conversion may be used when the only information available is the Haggitt level.

Level 0 - Extension 10

Level 1 - Extension 13

Level 2 - Extension 15

Level 3 - Extension 14

Level 4 - Extension 16

History:

For cases diagnosed 1998-2003:

EOD-Extension/Polyp--Colon:

Use the best information available to code EOD extension. The following conversion may be used when the only information available is the Haggitt level.

Level 0 - Extension 10

Level 1 - Extension 13

Level 2 - Extension 15

Level 3 - Extension 14

Level 4 - Extension 16

Reference: SEER EOD-88, 3rd Ed, page 52

Cancer Site Category:

Colon

Data Item Category:

N/A

Other Category:

N/A

Year:

2003