Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Diagram of the possible mechanisms of craniopharyngioma transformation. (a) The peripheral palisading epithelium of an adamantinomatous craniopharyngioma (aCP) undergoes transformation. (b) The squamous cells of a coexisting papillary squamous craniopharyngioma (pCP) or a mixed-type tumor undergo transformation. (c) Neighboring normal epithelial cells undergo transformation. (d) A distant metastasis invades an aCP
