hepatoblastoma histological classification
Although hepatoblastomas can be histologically classified into a variety of subtypes, it is important to remember that with the possible exception of small cell undifferentiated subtype, prognosis is independent of histology when adjusted for stage gender and age .
- major categories
- epithelial
- fetal, well differentiated
- embryonal
- macrotrabecular
- mixed
- small cell undifferentiated
- rhabdoid
- epithelial
- minor categories
- cholangioblastic (ductal)
- keratinizing squamous epithelium
- intestinal glandular epithelium
- teratoid (neuroid-melanocytic)
- rhabdomyoblastic
- chondroid
- osteoid