Related Experiment Video
Updated: Jun 27, 2026

06:15
Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
A 59 year-old man with sellar lesion
Brain Pathology (Zurich, Switzerland)
|December 17, 2008
Summary
This study reports the first case of a craniopharyngioma intimately admixed with a pituitary gonadotroph adenoma. The findings suggest a novel origin for craniopharyngioma within an existing adenoma.
Area of Science:
- Neuro-oncology
- Endocrinology
- Pathology
Background:
- Pituitary adenomas and craniopharyngiomas are distinct sellar region tumors.
- Craniopharyngiomas with pituitary adenomas are rare, with prior cases involving prolactinomas and separate masses.
Observation:
- A 59-year-old male presented with a large sellar mass.
- Pathology revealed a mixed tumor: predominantly gonadotroph adenoma with admixed nests of adamantinomatous craniopharyngioma cells.
- The craniopharyngioma cells showed proliferation (Ki-67) and appeared to arise within the adenoma.
Findings:
- This is the first documented case of an intimately admixed craniopharyngioma and pituitary gonadotroph adenoma.
- The intimate admixture and proliferation suggest a potential in-situ origin of craniopharyngioma within the adenoma.
Implications:
- Challenges current understanding of sellar tumor development and coexistence.
- Highlights the importance of detailed histopathological analysis for rare tumor presentations.
- May inform future diagnostic and therapeutic strategies for complex sellar masses.

