Intrauterine-diagnosed fetal intracranial adamantinomatous craniopharyngioma: A case report with histopathological and molecular characterization.

Craniopharyngiomas are the most common non-neuroepithelial intracerebral neoplasms in children but rarely occur before birth, and are typically associated with a poor prognosis. We present the case of a 39-year-old woman with a spontaneously conceived singleton pregnancy. At 20 weeks of gestation, ultrasound detected a 44×25 mm heterogeneously hyperechogenic intracranial mass located at the base of the sphenoid bone, extending bilaterally.