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A Rathke's cleft cyst is a benign growth on the pituitary gland in the brain, specifically a mucin-filled [1] cyst in the posterior portion of the anterior pituitary gland. [2] [3] It occurs when the Rathke's pouch does not develop properly and ranges in size from 2 to 40 mm in diameter.
Rathke's pouch may develop benign cysts. Craniopharyngioma is a neoplasm which can arise from the epithelium within the cleft. Abnormal development of Rathke's pouch can lead to various congenital disorders such as Rathke's cleft cysts.
Nasopharyngeal cyst refers to cystic swelling arising from midline and lateral wall of the nasopharynx. The commonest cyst arising from lateral wall is the nasopharyngeal branchial cyst, whereas the mucus retention cysts are the commonest to arise from the midline. [1] Sometimes nasopharyngeal cyst may directly refer to Tornwaldt cyst. [2]
Hemorrhage from a Rathke's cleft cyst, a remnant of Rathke's pouch that normally regresses after embryological development, may cause symptoms that are indistinguishable from pituitary apoplexy. [4] Pituitary apoplexy is regarded by some as distinct from Sheehan's syndrome , where the pituitary undergoes infarction as a result of prolonged very ...
Craniopharyngioma is a rare, usually suprasellar [15] neoplasm, which may be cystic, that develops from nests of epithelium derived from Rathke's pouch. [16] [17] Rathke's pouch is an embryonic precursor of the anterior pituitary. [citation needed] Craniopharyngiomas are typically very slow-growing tumors.
These account for 8% of the sinuses and cysts of the neck. They are lateral to the facial nerve and run parallel to the external auditory canal. [9] Second branchial cleft cysts - These account for 90 to 95% of the neck cysts. Anterior to sternocleidomastoid muscle, posterior to submandibular gland, lateral to carotid sheath. They are medial to ...
Vocal fold cysts (also known as vocal cord cysts) are benign masses of the membranous vocal folds. [1] These cysts are enclosed, sac-like structures that are typically of a yellow or white colour. [2] They occur unilaterally on the midpoint of the medial edge of the vocal folds. [1] They can also form on the upper/superior, surface of the vocal ...
Alternative diagnoses for CCRN consist of thyroglossal duct cyst, hair follicle naevus, fibroepithelial polyp, and branchial cleft cyst. [6] Thyroglossal duct cysts are typically found in the midline of the neck, near the hyoid bone, and move with tongue protrusion or swallowing. [7]