Craniopharyngioma

**Semantic type:** Neoplastic Process

**Definition:** A benign, partly cystic, epithelial tumor of the sellar region, presumably derived from Rathke pouch epithelium. It affects mainly children and young adults. There are two clinicopathological forms: adamantinomatous craniopharyngioma and papillary craniopharyngioma. The most significant factor associated with recurrence is the extent of surgical resection, with lesions greater than 5 cm in diameter carrying a markedly worse prognosis. (Adapted from WHO)

**Synonyms:** - Benign neoplasm of craniopharyngeal duct - CRANIOPHARYNGIOMA, BENIGN - Craniopharyngeal Tumor - Craniopharyngioma (WHO Grade 1) - Craniopharyngioma (WHO Grade I) - Cystoma - Neoplasm of Rathke's Pouch - Neoplasm of Rathke's Pouch - Rathke Pouch Neoplasm - Rathke Pouch Neoplasm - Rathke Pouch Tumor - Rathke Pouch Tumor - Rathke pouch tumor - Rathke's Pouch Neoplasm - Rathke's Pouch Neoplasm - Rathke's Pouch Tumor - Rathke's Pouch Tumor - Tumor of Rathke's Pouch - Tumor of Rathke's Pouch - craniopharyngioma