ANATOMY

Detailed explanation-1: -Rathke’s pouch is a diverticulum arising from the embryonic buccal cavity, from which the anterior pituitary gland develops. Craniopharyngiomas are composed of well-differentiated epithelial elements, including cysts and ameloblasts, and bone.

Detailed explanation-2: -The pituitary is an organ of dual origin. The anterior lobe (adenohypophysis) is derived from oral ectoderm and is epithelial in origin, whereas the posterior lobe (neurohypophysis) derives from the neural ectoderm.

Detailed explanation-3: -What is a Rathke cleft cyst? A Rathke cleft cyst is a rare benign tumor on your pituitary gland near the base of your skull. Although not cancerous (benign), this cyst can create significant medical problems if it grows large enough to affect your pituitary gland or other surrounding structures.