Differential expression of miRNAs in cHL subtypes and in reactive lymph nodes. (A) Nodular sclerosis (NS) versus reactive lymph nodes (RLN). (B) Mixed cellularity (MC) versus reactive lymph nodes. (C) NS versus MC. (D) All cHL cases (NS and MC) versus RLN. miRNAs overexpressed (in red) or underexpressed (in green) are shown in boxes (SAM analysis).