Figure 2. MAOA is highly expressed in cHL and a minor subset of PMBL but not in NHLs or reactive lymphoid tissue.

(A) Distribution of MAOA expression and staining intensity by IHC in 241 clinical samples. *Each circle represents one case. Total of 241 cases. (B) Comparison of MAOA expression among cHL histologic subtypes, NHL cases, reactive lymphoid tissues, and lymphomas with RS-like cells. Abbreviations: primary mediastinal large B-cell lymphoma (PMBL); Epstein-Barr virus positive diffuse large B-cell lymphoma (EBV+DLBCL); T-cell/histiocyte-rich large B cell lymphoma (THRLBCL); small lymphocytic lymphoma with Reed-Sternberg-like cells (SLL with RS-like cells); angioimmunoblastic T-cell lymphoma (AITL with RS-like cells). * A single case of mediastinal gray-zone lymphoma was also studied and is not shown (see text).