In contrast, LyP type B is characterized by CD30-negative atypical cerebriform mononuclear cells, similar to those observed in mycosis fungoides [4]. A less common variant, LyP type C, resembles LyP type A in its large clusters of CD30-positive cells but differs by its markedly reduced inflammatory cell infiltrate [5]. Here, TNFRSF8 is linked to mycosis fungoides.