Table 1 Varieties of diffuse malignant mesothelioma (main types shown in bold type)
EpithelialSarcomatoid
TubulopapillaryFibrosarcomatoid
Solid variantChondrosarcomatoid
AdenomatoidOsteosarcomatoid
Small cellLeiomyosarcomatoid
Clear cellMalignant fibrous histiocytoma-like
DeciduoidLymphohistiocytoid
AdenoidcysticDesmoplastic
PleomorphicBiphasic ( =  mixed)
Mucin-positiveAny combination across the above groups