Role of Helicobacter pylori in gastric mucosa-associated lymphoid tissue lymphomas

Table 1 World Health Organization-based classification of mucosa-associated lymphoid tissue lymphomas

Hierarchical classification

Tumors of hematopoietic and lymphoid tissue

Mature B-cell neoplasms

Non-Hodgkin (B-cell) lymphomas

Marginal zone (B-cell) lymphomas

Extranodal marginal zone lymphomas of mucosa-associated lymphoid tissue

Hierarchical classification of mucosa-associated lymphoid tissue lymphomas, according to the 2008 World Health Organization definitions. Adapted from Swerdlow et al[5], 2008.