Synchronous Morphologically Distinct Craniopharyngioma and Pituitary Adenoma: A Rare Collision Entity

Simultaneous occurrence of morphological distinct, discreet intracranial tumors sharing the same cell lineage is a rarity. Pituitary tumors and craniopharyngiomas share a common lineage. Simultaneous occurrence of these two tumors in the same patient is rare and has been reported only nine times so far (Table 1). While pituitary tumours are centred in the sella, craniopharyngiomas may occur anywhere from the pituitary gland to the third ventricle. Association of intra-third ventricular craniopharyngioma and growth hormonesecreting pituitary macroadenoma as two distinct, unconnected tumors occurring synchronously has not been reported so far.