Summary Stage 2018: Retroperitoneum
Summary Stage 2018
Notes
**Retroperitoneum**
C480 (8000-8803, 8810-8921, 8932-8934, 8940-8990, 9000-9016, 9030-9043, 9045-9137, 9141-9230, 9240-9580, 9582, 9700-9701)
C481- C482, C488 (8710-8714, 8800-8803, 8810-8821, 8823-8921, 8932, 8934, 8940-8941, 8951-8959, 8963-8975, 8981-8990, 9010-9016, 9030-9043, 9045, 9051, 9053-9055, 9061-9065, 9072, 9081-9084, 9086, 9101-9105, 9120-9137, 9141-9230, 9240-9580, 9582)
C481-C482, C488 and Sex: 1, 3, 4, 5, 9 (8000-8700, 8720-8790, 8822, 8933, 8950, 8960, 8980, 9000, 9050, 9052, 9060, 9070-9071, 9073, 9080, 9085, 9090-9091, 9100, 9110, 9700-9701)
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 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 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:** See the following chapters for the listed histologies
* C481-C482, C488 and Sex: 2, 6 (8000-8700, 8720-8790, 8806, 8822, 8930-8931, 8933, 8950, 8960, 8980, 9000, 9050, 9052, 9060, 9070-9071, 9073, 9080, 9085, 9090-9091, 9100, 9110, 9700-9701: *Primary Peritoneal Carcinoma*
* 8804-8805, 8991, 9020, 9044, 9231, 9581: *Soft Tissue*
* 8806, 8930-8931 (C480; C481-C488 with Sex 1, 3, 5, 9): *Soft Tissue*
* 8935-8936: *GIST*
* 9140: *Kaposi Sarcoma*
**Note 3:** Code 0 is not applicable for this chapter.
| 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
