Epithelial | Sarcomatoid |
Tubulopapillary | Fibrosarcomatoid |
Solid variant | Chondrosarcomatoid |
Adenomatoid | Osteosarcomatoid |
Small cell | Leiomyosarcomatoid |
Clear cell | Malignant fibrous histiocytoma-like |
Deciduoid | Lymphohistiocytoid |
Adenoidcystic | Desmoplastic |
Pleomorphic | Biphasic ( = mixed) |
Mucin-positive | Any combination across the above groups |