Summary Stage 2018: Anus
Summary Stage 2018
Notes
**Anus and Anal Canal**
8000-8700, 8720-8790, 9700-9701
C210-C212, C218
C210 Anus, NOS (excluding skin of anus and perianal skin C445)
C211 Anal canal
C212 Cloacogenic zone
C218 Overlapping lesion of rectum, anus and anal canal
**Note 1:** The following sources were used in the development of this chapter
* SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998) (https://seer.cancer.gov/archive/manuals/EOD10Dig.3rd.pdf)
* SEER Summary Staging Manual-2000: Codes and Coding Instructions (https://seer.cancer.gov/tools/ssm/ssm2000/)
* Collaborative Stage Data Collection System, version 02.05: https://cancerstaging.org/cstage/Pages/default.aspx
* Chapter 21 *Anus*, in the AJCC Cancer Staging Manual, Eighth Edition (2017) published by Springer International Publishing. Used with permission of the American College of Surgeons, Chicago, Illinois.
**Note 2:** See the following chapters for the listed histologies
* 8710-8714, 8800-8934, 8940-9137, 9141-9582: *Soft Tissue*
* 8935-8936: *GIST*
* 9140: *Kaposi Sarcoma*
| SS2018 |
Description |
| 0 |
In situ, intraepithelial, noninvasive
- Anal intraepithelial neoplasia III
- Bowen disease |
| 1 |
Localized only (localized, NOS)
- Confined to anus, NOS
- Incidental finding of malignancy in hemorrhoid, NOS
- Intramucosa
- Lamina propria
- Mucosa, NOS
- Muscularis mucosae
- Muscularis propria (internal sphincter)
- Submucosa (superficial invasion) |
| 2 |
Regional by direct extension only
- Ischiorectal fat/tissue
- Perianal skin
- Perineum
- Perirectal skin
- Rectal mucosa or submucosa
- Rectal wall
- Skeletal muscle(s)
+ Anal sphincter (external)
+ Levator ani
- Subcutaneous perianal tissue
- Vulva |
| 3 |
Regional lymph node(s) involved only
- Anorectal
- External iliac
- Inferior hemorrhoidal
- Inguinal (femoral) (deep, superficial)
- Internal iliac (hypogastric)
- Lateral sacral (laterosacral)
- Mesorectal
- Obturator
- Perirectal
- Superior rectal (hemorrhoidal) (femoral)
- Regional lymph node(s), NOS
+ Lymph node(s), NOS |
| 4 |
Regional by BOTH direct extension AND regional lymph node(s) involved
- Codes (2) + (3) |
| 7 |
Distant site(s)/lymph node(s) involved
- Distant site(s) (including further contiguous extension)
+ Bladder
+ Broad ligament(s)
+ Cervix uteri
+ Corpus uteri
+ Pelvic peritoneum
+ Prostate
+ Urethra
+ Vagina
- Distant lymph node(s), NOS
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastases WITH or WITHOUT distant lymph node(s) |
| 9 |
Unknown if extension or metastasis |
(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998
(2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001.
(3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05.** American Joint Committee on Cancer (Chicago, IL)
(4) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging.** In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 3-30
(5) Welton, M.L., Jessup, J.M., et al. **Anus**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 275-284
