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{{CMG}}{{AE}}{{SR}}, {{AY}}
{{MALT lymphoma}}

==Overview==
The staging of MALT lymphoma is based on two staging systems: Ann Arbor staging system and the TNM staging system.

==Staging==
The staging of MALT lymphoma is based on two staging systems: Ann Arbor staging system and the TNM staging system.<ref name=stagingmaltlymphoma1>Staging MALT lymphoma of the stomach. Canadian Cancer Society 2016. http://www.cancer.ca/en/cancer-information/cancer-type/non-hodgkin-lymphoma/non-hodgkin-lymphoma/types-of-nhl/malt-lymphoma/?region=on. Accessed on January 25, 2016</ref>

===Ann Arbor Staging System===
The Ann Arbor staging system has been modified for gastric MALT lymphoma.<ref name=stagingmaltlymphoma1>Staging MALT lymphoma of the stomach. Canadian Cancer Society 2016. http://www.cancer.ca/en/cancer-information/cancer-type/non-hodgkin-lymphoma/non-hodgkin-lymphoma/types-of-nhl/malt-lymphoma/?region=on. Accessed on January 25, 2016</ref>

{| style="border: 0px; font-size: 90%; margin: 3px; width:1000px"
|valign=top|
|+
! style="background: #4479BA; width: 200px;" | {{fontcolor|#FFF|Stage}}
! style="background: #4479BA; width: 800px;" | {{fontcolor|#FFF|Description}}
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" align=center |
Stage I
| style="padding: 5px 5px; background: #F5F5F5;" |
Tumor is confined to the stomach without spread to the lymph nodes
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" align=center |
Stage II
| style="padding: 5px 5px; background: #F5F5F5;" |
Tumor extends into the abdomen and has spread to the lymph nodes
*'''II1''': Cancer has spread to local lymph nodes (such as [[paragastric nodes]])
*'''II2''': Cancer has spread to distant lymph nodes (such as [[para-aortic]], [[pelvic]], or [[inguinal nodes]])
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" align=center |
Stage IIE
| style="padding: 5px 5px; background: #F5F5F5;" |
Tumor penetrates the serosa to spread to adjacent organs or tissues
|-
| style="padding: 5px 5px; background: #DCDCDC;font-weight: bold" align=center|
Stage IV
| style="padding: 5px 5px; background: #F5F5F5;" |
Disseminated spread to extranodal sites or spread to the lymph nodes above the diaphragm (supradiaphragmatic nodal involvement)
|}

===TNM Staging System===
The TNM staging system for stomach cancer has also been applied to gastric MALT lymphoma. TNM stands for tumor, nodes, and metastasis.<ref name=stagingmaltlymphoma1>Staging MALT lymphoma of the stomach. Canadian Cancer Society 2016. http://www.cancer.ca/en/cancer-information/cancer-type/non-hodgkin-lymphoma/non-hodgkin-lymphoma/types-of-nhl/malt-lymphoma/?region=on. Accessed on January 25, 2016</ref>

{| style="border: 0px; font-size: 90%; margin: 3px; width: 600px" align=center
|valign=top|
|+
! style="background: #4479BA; width: 100px;" | {{fontcolor|#FFF|TNM Classification}}
! style="background: #4479BA; width: 400px;" | {{fontcolor|#FFF|Definition}}
|-
| style="padding: 0 5px; background: #4479BA" colspan=3 |{{fontcolor|#FFF|Primary Tumor (T)}}
|-
| style="padding: 5px 5px; background: #DCDCDC;" |T1
| style="padding: 5px 5px; background: #F5F5F5;" |The lymphoma is confined to the mucosa or submucosa
*'''T1m''': Lymphoma confined to the mucosa
*'''T1sm''': Lymphoma confined to the submucosa
|-
| style="padding: 5px 5px; background: #DCDCDC;" |T2
| style="padding: 5px 5px; background: #F5F5F5;" |Lymphoma invades the muscularis propria
|-
| style="padding: 5px 5px; background: #DCDCDC;" |T3
| style="padding: 5px 5px; background: #F5F5F5;" |Lymphoma penetrates the subserosa
|-
| style="padding: 5px 5px; background: #DCDCDC;" |T4
| style="padding: 5px 5px; background: #F5F5F5;" |Lymphoma has grown through the serosa or invades organs near the stomach
|-
| style="padding: 5px 5px; background: #DCDCDC;" |T1a
| style="padding: 5px 5px; background: #F5F5F5;" |[[Tumor]] invades subepithelial [[connective tissue]], but has no lymphovascular invasion
|-
| style="padding: 5px 5px; background: #DCDCDC;" |T1b
| style="padding: 5px 5px; background: #F5F5F5;" |Tumor invades subepithelial connective tissue and has spread to the [[lymphatic]] channels or [[blood vessels]]
|-
| style="padding: 5px 5px; background: #DCDCDC;" |T2
| style="padding: 5px 5px; background: #F5F5F5;" |Tumor invades the [[erectile tissue]] ([[corpus spongiosum]] or cavernosum)
|-
| style="padding: 0 5px; background: #4479BA" colspan=3 |{{fontcolor|#FFF|Regional Lymph Nodes (N)}}
|-
| style="padding: 5px 5px; background: #DCDCDC;" |N0
| style="padding: 5px 5px; background: #F5F5F5;" |No cancer in regional lymph nodes
|-
| style="padding: 5px 5px; background: #DCDCDC;" |N1-3
| style="padding: 5px 5px; background: #F5F5F5;" |There is cancer in the regional lymph nodes
|-
| style="padding: 0 5px; background: #4479BA" colspan=3 |{{fontcolor|#FFF| Distant Metastasis (M)}}
|-
| style="padding: 5px 5px; background: #DCDCDC;" |M0
| style="padding: 5px 5px; background: #F5F5F5;" |No distant [[metastasis]]
|-
| style="padding: 5px 5px; background: #DCDCDC;" |M1
| style="padding: 5px 5px; background: #F5F5F5;" |Distant metastasis
|}

==References==
{{reflist|2}}

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