Summary Stage 2018: Placenta
Summary Stage 2018
Notes
**Placenta**
8000-8700, 8720-8790, 9100-9105
C589
C589 Placenta
**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 56 *Gestational Trophoblastic Neoplasms*, 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, 8940-9091, 9110-9138, 9141-9582: *Soft Tissue*
* 8935-8936: *GIST*
* 9140: *Kaposi Sarcoma*
* 9700-9701: *Mycosis Fungoides*
**Note 3:** If a trophoblastic tumor is not associated with a pregnancy and arises in another site, such as ovary, use the primary site code and the appropriate Summary Stage chapter.
| SS2018 |
Description |
| 0 |
In situ, intraepithelial, noninvasive |
| 1 |
Localized only (localized, NOS)
* Confined to placenta
FIGO Stage I |
| 2 |
Regional by direct extension only
* Adjacent connective tissue, NOS
* Cervix
* Corpus uteri
* Other genital structure(s) by DIRECT EXTENSION or NOS
+ Broad ligament
+ Fallopian tube(s)
+ Genital structure(s), NOS
+ Ovary(ies)
+ Vagina
* Uterus, NOS
FIGO Stage II |
| 3 |
Regional lymph node(s) involved only
- Aortic, NOS
+ Lateral (lumbar)
+ Para-aortic
+ Peri-aortic
- Iliac, NOS
+ Common
+ External
+ Internal (hypogastric), NOS
* Obturator
- Parametrial
- Pelvic, NOS
- Sacral
+ Lateral (laterosacral)
+ Middle (promontorial) (Gerota's node)
+ Presacral
+ Uterosacral
- 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)
+ Other genital structure(s) by METASTASIS
* Broad ligament
* Cervix uteri
* Corpus uteri
* Fallopian tube(s)
* Genital structure(s), NOS
* Ovary(ies)
* Uterus, NOS
* Vagina
- Distant lymph node(s), NOS
+ Superficial inguinal (femoral)
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastasis WITH or WITHOUT distant lymph node(s)
FIGO Stage III, IV |
| 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) **Introduction to Female Reproductive Organs**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
(6) Chen, L., Olawaiye, A.B., Mutch, D.G., et al. **Gestational Trophoblastic Neoplasms**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017
