Summary Stage 2018: Retroperitoneum

Summary Stage 2018

Notes

**Retroperitoneum** C480 (8000-8803, 8810-8921, 8932-8934, 8940-8990, 9000-9016, 9030-9043, 9045-9138, 9141-9230, 9240-9580, 9582) 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, 9120-9138, 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) 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:** **Sources 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:** **Other Summary Stage Chapters with Retroperitoneum sites** * **Primary Peritoneal Carcinoma**: 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, 9110-9111) * **GIST**: 8935-8936 * **Kaposi Sarcoma**: 9140 * **Mycosis Fungoides**: 9700-9701 * **Soft Tissue** * C480; C481-C488 with Sex 1, 3, 5, 9 (8806, 8930-8931) * 8804-8805, 8991-8992, 9020, 9044, 9231, 9581 **Note 3:** **Not applicable codes** * Code 0 is not applicable for this chapter.

NAACCR Item

NAACCR #764

SS2018	Description
1	Localized only (localized, NOS) - Confined to site of origin
2	Regional by direct extension only * All sites - 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 (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 (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

SS2018	Description
1	Localized only (localized, NOS) - Confined to site of origin
2	Regional by direct extension only * All sites - 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