Primary Tumors of the Pituitary Gland: Radiologic–Pathologic Correlation
A practical radiology review of Primary Tumors of the Pituitary Gland: Radiologic–Pathologic Correlation, focused on imaging findings, differential diagnosis, reporting points,...
RadPhrases Editorial Team1 min read
A practical radiology review of Primary Tumors of the Pituitary Gland: Radiologic–Pathologic Correlation, focused on imaging findings, differential diagnosis, reporting points, and high-yield teaching pearls.
- Epidemiology & Basics
2. nd most common CNS tumor (after meningioma)
Most frequent in adolescents/young adults
Derived from 3 embryologic origins
- Adenohypophysis (anterior) → adenomas
- Rathke pouch → craniopharyngiomas
- Neurohypophysis (posterior) → pituicytoma spectrum
Adenohypophyseal Tumors
- Pituitary adenomas = 90–95% of cases
- Micro <10 mm | Macro ≥10 mm | Giant ≥40 mm
- MRI: delayed enhancement vs normal gland
- Dynamic post-contrast helps microadenoma detection
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