Merkel cell cancer staging: Difference between revisions
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==Staging== | ==Staging== | ||
* According to the [[TNM staging system]], | * According to the [[TNM staging system]], merkel cell cancer is classified into 4 stages based on the following: | ||
* The stages of Merkel cell carcinoma are shown in the table below:<ref name=AJCC>{{cite web |url=https://cancerstaging.org/cstage/schema/Pages/version0205.aspx |title=AJCC Cancer Staging|access-date=2015}}</ref> | ** Tumor size | ||
** Involvement of [[lymph nodes]], and | |||
** Metastasis | |||
* The stages of Merkel cell carcinoma are shown in the table below:<ref name="AJCC">{{cite web |url=https://cancerstaging.org/cstage/schema/Pages/version0205.aspx |title=AJCC Cancer Staging|access-date=2015}}</ref> | |||
{| {{table}} | {| {{table}} cellpadding="4" cellspacing="0" style="border:#c9c9c9 1px solid; margin: 1em 1em 1em 0; border-collapse: collapse;" | ||
| align="center" style="background:#f0f0f0;"|'''Stage''' | | align="center" style="background:#f0f0f0;" |'''Stage''' | ||
| align="center" style="background:#f0f0f0;"|'''Primary Tumor (T)''' | | align="center" style="background:#f0f0f0;" |'''Primary Tumor (T)''' | ||
| align="center" style="background:#f0f0f0;"|'''Lymph Node (N)''' | | align="center" style="background:#f0f0f0;" |'''Lymph Node (N)''' | ||
| align="center" style="background:#f0f0f0;"|'''Metastasis (M)''' | | align="center" style="background:#f0f0f0;" |'''Metastasis (M)''' | ||
|- | |- | ||
| 0||In situ | | 0||In situ||No regional lymph node metastasis||No distant metastasis | ||
|- | |- | ||
| IA|| | | IA||≤2 cm ||Nodes negative by pathologic exam||No distant metastasis | ||
|- | |- | ||
| IB|| | | IB||≤2 cm ||Nodes negative by clinical exam (no pathologic node exam performed)||No distant metastasis | ||
|- | |- | ||
| IIA|| | | IIA||>2 cm||Nodes negative by pathologic exam||No distant metastasis | ||
|- | |- | ||
| IIB|| | | IIB||>2 cm||Nodes negative by clinical exam (no pathologic node exam performed)||No distant metastasis | ||
|- | |- | ||
| IIC|| | | IIC||Invades bone, muscle and cartilage||No regional lymph node metastasis detected ||No distant metastasis | ||
|- | |- | ||
| IIIA||Any size tumor (includes invading tumors)||Micrometastasis (diagnosed after sentinel or elective lymphadenectomy)||No distant metastasis | | IIIA||Any size tumor (includes invading tumors)||Micrometastasis (diagnosed after sentinel or elective lymphadenectomy)||No distant metastasis | ||
|- | |- | ||
| IIIB||Any size tumor (includes invading tumors)||Macrometastasis | | IIIB||Any size tumor (includes invading tumors)||Postive for: | ||
* Macrometastasis | |||
* In transit metastasis | |||
|No distant metastasis | |||
|- | |- | ||
| IV||Any size tumor (includes invading tumors)||Any lymph node metastasis||Metastasis beyond regional lymph nodes | | IV||Any size tumor (includes invading tumors)||Any lymph node metastasis||Metastasis beyond regional lymph nodes |
Revision as of 17:38, 17 January 2019
Merkel cell cancer Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Merkel cell cancer staging On the Web |
American Roentgen Ray Society Images of Merkel cell cancer staging |
Risk calculators and risk factors for Merkel cell cancer staging |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2]
Overview
The staging of Merkel cell cancer is based on the TNM staging system.
Staging
- According to the TNM staging system, merkel cell cancer is classified into 4 stages based on the following:
- Tumor size
- Involvement of lymph nodes, and
- Metastasis
- The stages of Merkel cell carcinoma are shown in the table below:[1]
Stage | Primary Tumor (T) | Lymph Node (N) | Metastasis (M) |
0 | In situ | No regional lymph node metastasis | No distant metastasis |
IA | ≤2 cm | Nodes negative by pathologic exam | No distant metastasis |
IB | ≤2 cm | Nodes negative by clinical exam (no pathologic node exam performed) | No distant metastasis |
IIA | >2 cm | Nodes negative by pathologic exam | No distant metastasis |
IIB | >2 cm | Nodes negative by clinical exam (no pathologic node exam performed) | No distant metastasis |
IIC | Invades bone, muscle and cartilage | No regional lymph node metastasis detected | No distant metastasis |
IIIA | Any size tumor (includes invading tumors) | Micrometastasis (diagnosed after sentinel or elective lymphadenectomy) | No distant metastasis |
IIIB | Any size tumor (includes invading tumors) | Postive for:
|
No distant metastasis |
IV | Any size tumor (includes invading tumors) | Any lymph node metastasis | Metastasis beyond regional lymph nodes |
Adapted from the American Joint Committee on Cancer (AJCC) - 2009
References
- ↑ "AJCC Cancer Staging". Retrieved 2015. Check date values in:
|access-date=
(help)