Seminoma staging: Difference between revisions
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Revision as of 16:20, 29 February 2016
Seminoma Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Seminoma staging On the Web |
American Roentgen Ray Society Images of Seminoma staging |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]
Overview
Staging
The staging for testicular seminoma is performed according to the TNM system with staging groupings. It can be remembered in its abbreviated form as:[1]
- Stage I: confined to testis, epididymis, spermatic cord, scrotum
- Stage II: lymph nodes involved but no distant metastases, and serum tumor markers are not very high
- Stage III: distant metastases or moderately high serum tumor markers
The American Joint Committee on Cancer (AJCC) includes serum tumor marker levels in the stages for germ cell tumors, including seminoma. S describes the levels of serum tumour markers in the blood after orchiectomy. The serum tumor markers measured are alpha-fetoprotein (AFP), human chorionic gonadotropin (HCG), and lactate dehydrogenase (LDH).[2]
S | Serum tumor marker levels |
---|---|
SX | Tumor marker levels are not available or have not been measured. |
S0 | Tumor marker levels are normal. |
S1 | All tumor marker levels are above normal.
|
S2 | At least one tumor marker level is high. |
S3 | At least one tumor marker level is very high.
|
TNM Classification for Seminoma
TNM stands for tumor, nodes, and metastasis. TNM staging describes:[1]
- size and extent of the primary tumor
- number and location of any regional lymph nodes (abdominal retroperitoneal nodes) infiltrated by tumor cells
- whether the cancer metastasized to distant part of the body
TNM Classification | Definition | |
---|---|---|
Primary Tumor (T) | ||
TX | Primary tumor cannot be assessed (orchiectomy not performed) | |
T0 | No evidence of primary tumor | |
Tis | Intratubular germ cell neoplasia (carcinoma in situ) | |
T1 |
Tumor limited to testis and epididymis | |
T2 |
Tumor limited to testis and epididymis | |
T3 | Invasion of the spermatic cord | |
T4 | Invasion of the scrotum | |
Regional Lymph Nodes (N) | ||
NX | Regional lymph nodes cannot be assessed | |
N0 | No evidence of nodal involvement | |
N1 | One or more lymph nodes involved, but all <2 cm in greatest dimension | |
N2 | One or more lymph nodes involved 2-5 cm in greatest dimension | |
N3 | One or more lymph nodes involved >5 cm in greatest dimension | |
Distant Metastasis (M) | ||
MX | Presence of metastases cannot be assessed | |
M0 | No evidence of metastases | |
M1 | Distant metastases present
|
Stage Grouping for Testicular Seminoma
Stage grouping, is based on the TNM system and serum tumor marker levels (S).[2] Each stage is given a number from 0 to 3, usually as a Roman numeral (0, I, II or III). Generally, the higher the number, the more the cancer has progressed.[2]
Stage 0
The following describes all stage 0 testicular cancers.[3]
UICC Stage | TNM | Explanation |
---|---|---|
Stage 0 | Tis | Intratubular germ cell neoplasia, unclassified (IGCNU), is present. |
N0 | There is no regional lymph node metastasis. | |
M0 | There is no distant metastasis. | |
S0 | Serum tumor marker levels are normal. |
References
- ↑ 1.0 1.1 Testicular cancer staging. Dr Marcin Czarniecki and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/testicular-cancer-staging. Accessed on February 26, 2016
- ↑ 2.0 2.1 2.2 Staging testicular cancer. Canadian cancer society 2016. http://www.cancer.ca/en/cancer-information/cancer-type/testicular/staging/?region=on. Accessed on February 26, 2016
- ↑ Staging testicular cancer. Canadian cancer society 2016. http://www.cancer.ca/en/cancer-information/cancer-type/testicular/staging/?region=on. Accessed on February 29, 2016