Gastric low-grade mucosal-associated lymphoid tissue-lymphoma: Helicobacter pylori and beyond

Table 1 Endoscopic presentation of primary gastric MALT-lymphoma

Type	Main endoscopic presentation
Ulcerative	Single or multiple ulcerations or multiple erosions
Exophytic	Tumor-like appearance with an irregular or polypoid mass
Hypertrophic	Large or giant folds; nodular pattern
Mixed	A combination of more than one pattern
Petechial haemorrhage	Presence of several mucosal petechial haemorrhages
Normal/hyperaemic	Normal appearing mucosa/hyperaemic changes

MALT: Mucosal-associated lymphoid tissue.

Table 2 Gastric lymphoma staging

Ann Arbor	TNM	Description
I	T1-T4 N0 M0	Confined within the gastric wall
II1	T1-T4 N1 M0	Perigastric lymph nodes
II2	T1-T4 N2 M0	Regional lymph nodes
III	T1-T4 N3 M0	Lymph nodes on both sides of the diaphragm
IV	T1-T4 N0-3 M1	Visceral metastasis or second extranodal site