- Etiology: non-neonplastic cyst arising from remnants of squamous epithelium of Rathke’s cleft / pars intermedia of adenohypophysis
- Imaging: usually located between pars anterior and pars posterior, intra/suprasellar cyst without calcification or enhancement, variable cyst content – mucous (T1 bright), serous (T1 dark) and possible blood products (T2 dark), usually less than 3 mm in diameter, +/- small intracystic nodules
- DDX: pituitary microadenoma
- Complications:
- Treatment: none
- Clinical: normal variant