There are two major theories of the development of craniopharyngioma: the embryonic theory and the metaplastic theory.
These two theories correlate with the two histologic subtypes of craniopharyngiomas, that is
- Adamantinomatous craniopharyngioma (ACP)
- Papillary craniopharyngioma (PCP)
Quick summary of subtypes of craniopharyngioma

Some illustrations- histology and immunohistochemistry of subtypes of craniopharyngiomas.


Some MCQs related to this topic
Reference: https://www.ncbi.nlm.nih.gov/books/NBK459371/
