Sarcoma (Leiomyosarcoma and Endometrial Stromal Sarcoma) of the Corpus Uteri; Uterus, NOS (excluding Placenta and Adenosarcoma, Carcinoma, and Carcinosaroma)

Primary Site Histology Staging Type
C540-C543, C548-C549, C559 8800, 8890-8898, 8900-8921, 8930-8931, 8935 TNM 7 and Summary Stage
C540-C543, C548-C549, C559 8801-8889, 8899, 8922-8929, 8932, 8934, 8936-8941, 8959-8974, 8982-9136, 9141-9582 Summary Stage only

If you are working with a site/histology that only summary stages and you need to directly code it, please use the SEER Summary Stage 2000 manual

Notes

C540 Isthmus uteri C541 Endometrium C542 Myometrium C543 Fundus uteri C548 Overlapping lesion of corpus uteri C549 Corpus uteri C559 Uterus, NOS **Note 1:** This schema is based on the UICC chapter *Uterus-Uterine Sarcomas* pages 217-221. * Primary sites C541, C542, C548, and C549 are listed in the chapter heading but are not specified in the anatomic subsites in this chapter of the UICC manual; however, they are included in this schema and TNM staged if appropriate histology criteria are met. * Primary site group C53 is listed; however, is not included in this schema. See the *Cervix* schema. **Note 2:** The TNM 7th Edition staging reflects the new staging adopted by the International Federation of Gynecology and Obstetrics (FIGO) and utilizes three new staging schemas for cancer of the Corpus Uteri based on histology. The three new schemas are 1. Carcinoma and carcinosarcoma 2. Leiomyosarcoma and endometrial stromal sarcoma (ESS) 3. Adenosarcoma **Note 3:** The FIGO stages are based on surgical staging. (TNM stages are based on clinical and/or pathologic classification). **Note 4:** This schema is for leiomyosarcoma and endometrial stromal sarcoma (ESS). **Note 5:** When coding pay attention to the FIGO Editions and descriptions about cell and tumor types, disease extension, lymph node status and metastasis. **Note 6:** UICC 7th edition includes sarcomas of the cervix uteri with Uterine sarcomas and AJCC 7th edition limits it to sarcoma of the corpus uteri. SEER is not currently collecting TNM information on cervical sarcomas. **Note 7:** In addition to directly assigning TNM, Summary Stage 2000 (SS2000) must be captured. If directly assigning SS2000, use the *Corpus Uteri, Uterus, NOS* chapter on page 208 of the [SS2000 on-line manual](https://seer.cancer.gov/tools/ssm/ssm2000/SSSM2000-122012.pdf#page=208).

Main Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
Clinical T <BLANK> Yes NAACCR #940 None
Clinical N <BLANK> Yes NAACCR #950 None
Clinical M <BLANK> Yes NAACCR #960 None
TNM Clin Stage Group 99 Yes NAACCR #970 None
Pathologic T <BLANK> Yes NAACCR #880 None
Pathologic N <BLANK> Yes NAACCR #890 None
Pathologic M <BLANK> Yes NAACCR #900 None
TNM Path Stage Group 99 Yes NAACCR #910 None
SSF1: FIGO Stage 988 No NAACCR #2880 CCCR/Canada
COC
None
SSF2: Peritoneal Cytology 999 No NAACCR #2890 SEER None
SSF3: Number of Positive Pelvic Nodes 999 No NAACCR #2900 CCCR/Canada
COC
SEER
None
SSF4: Number of Examined Pelvic Nodes 999 No NAACCR #2910 CCCR/Canada
COC
SEER
None
SSF5: Number of Positive Para-Aortic Nodes 999 No NAACCR #2920 CCCR/Canada
COC
SEER
None
SSF6: Number of Examined Para-Aortic Nodes 999 No NAACCR #2930 CCCR/Canada
COC
SEER
None
SSF7: Percentage of Non-Endometrioid Cell Type in Mixed Histology Tumors 988 No NAACCR #2861 None None
SSF8: Omentectomy 988 No NAACCR #2862 None None

Additional Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
Year of Diagnosis <BLANK> No NAACCR #390 None
Primary Site <BLANK> Yes NAACCR #400 None
Histology <BLANK> Yes NAACCR #522 None
RX Summ Systemic/Surgery Sequence <BLANK> Yes NAACCR #1639 None
RX Summ Surgery/Radiation Sequence <BLANK> Yes NAACCR #1380 None
Regional Nodes Positive <BLANK> Yes NAACCR #820 None

Initial Context

Staging Methods

Expand All | Collapse All

TNM 7 Stage

Inclusion Table

Histology
8800
8890-8898
8900-8921
8930-8931
8935

Start

Additional Context
Clinical Stage Group = 90
Pathologic Stage Group = 90

Next Step

  1. Parse T
  2. clin_t_prefix
    tmp_clin_t

Next Step

  1. Parse N
  2. clin_n_prefix
    tmp_clin_n

Next Step

  1. Parse M
  2. tmp_clin_m
    clin_m_prefix

Next Step

  1. Parse T
  2. tmp_path_t
    path_t_prefix

Next Step

  1. Parse N
  2. tmp_path_n
    path_n_prefix

Next Step

  1. Parse M
  2. tmp_path_m
    path_m_prefix

Next Step

  1. Determine Default T
  2. Source T
    tmp_path_t
    tmp_clin_t
    tmp_combined_t

Next Step

  1. Determine Default N
  2. tmp_combined_n
    tmp_clin_n
    tmp_path_n
    Source N

Next Step

  1. Determine Default M
  2. tmp_path_m
    tmp_combined_m
    tmp_clin_m
    Source M

Next Step

  1. TNM 7 Stage Group
  2. Clinical Stage Group

Next Step

  1. TNM 7 Path Stage Group
  2. Pathologic Stage Group

Next Step

  1. Adjustments for No Clin or No Path
  2. tmp_combined_n
    tmp_combined_m
    Source T
    Clinical Stage Group
    Pathologic Stage Group
    Source N
    tmp_combined_t
    Source M

End

Combined Stage

Inclusion Table

Histology
8800
8890-8898
8900-8921
8930-8931
8935

Start

Additional Context
Combined M = 90
Combined N = 90
Combined Stage Group = 90
Combined T = 90

Next Step

  1. Stop if No Clin and No Path
  2. Combined M
    Combined N
    Source T
    tmp_continue
    Combined T
    Combined Stage Group
    Source N
    Source M

Next Step

  1. Combined T No Tis
  2. Source T
    tmp_combined_t

Next Step

  1. Combined N No Tis, Path N=cN0 allowed
  2. tmp_combined_n
    Source N

Next Step

  1. Combined M
  2. tmp_combined_m
    tmp_source_m
    Source M

Next Step

  1. Determine Combined Prefix
  2. cmb_t_prefix

Next Step

  1. Determine Combined Prefix
  2. cmb_n_prefix

Next Step

  1. Determine Combined Prefix
  2. cmb_m_prefix

Next Step

  1. Concatenate T
  2. Combined T

Next Step

  1. Concatenate N
  2. Combined N

Next Step

  1. Concatenate M
  2. Combined M

Next Step

  1. TNM 7 Path Stage Group
  2. Combined Stage Group

End

Outputs

Name Default Value Description NAACCR Item
Derived Version {{ctx_alg_version}} None
Derived SEER Clin Stage Group 88 NAACCR #3610
Derived SEER Path Stage Group 88 NAACCR #3605
Derived SEER Combined Stage Group 88 NAACCR #3614
Derived SEER Combined T 88 NAACCR #3616
Derived SEER Combined N 88 NAACCR #3618
Derived SEER Combined M 88 NAACCR #3620
Derived SEER Combined T Source <BLANK> NAACCR #3622
Derived SEER Combined N Source <BLANK> NAACCR #3624
Derived SEER Combined M Source <BLANK> NAACCR #3626