Summary Stage 2018: Retroperitoneum
Summary Stage 2018
Notes
**Soft Tissue Sarcoma-Retroperitoneum**
C480-C482, C488
C480 Retroperitoneum
C481 Specified parts of peritoneum (including omentum and mesentery)
C482 Peritoneum, NOS
C488 Overlapping lesion of retroperitoneum and peritoneum
**Note 1:** The following sources were used in the development of this schema
* 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/)
* Collaborative Stage Data Collection System, version 02.05: https://cancerstaging.org/cstage/Pages/default.aspx
* Chapter 44 *Soft Tissue Sarcoma of the Retroperitoneum*, 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:** Code 0 is not applicable for this schema
| SS2018 |
Description |
| 1 |
Localized only (localized, NOS)
- Confined to site of origin |
| 2 |
Regional by direct extension only
- Adjacent connective tissue, NOS
- Adjacent organs/structures, NOS
- Bone/cartilage
- Retroperitoneum (C480)
+ Adrenal(s) (suprarenal gland(s))
+ Aorta
+ Colon (ascending and descending)
+ Kidney(s)
+ Pancreas
+ Vena cava
+ Vertebra
- Peritoneum (C481, C482, C488)
+ Colon (except ascending and descending colon)
+ Esophagus
+ Gallbladder
+ Liver
+ Small intestine
+ Spleen
+ Stomach |
| 3 |
Regional lymph node(s) involved only
- Intra-abdominal
- Paracaval
- Pelvic
- Subdiaphragmatic
- 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)
+ Peritoneum (C481, C482, C488)
* Colon (ascending and descending colon)
- Distant lymph node(s), NOS
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant mets 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) Pollock, R.E., Maki, R.G. **Introduction to Soft Tissue Sarcoma**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 489-497
(6) Pollock, R.E., Maki, R.G., et al. **Soft Tissue Sarcoma of the Retroperitoneum**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 531-537
