Extracranial Craniopharyngioma Confined to the Sphenoid Sinus.

Craniopharyngioma is rare epithelial tumor that develops along the craniopharyngeal duct, and most of these tumors occur in the sellar and suprasellar regions. Although it rarely occurs in the extracranial region, sphenoid solitary lesions were not reported in previous literature. In this study, we report a case of infrasellar craniopharyngioma within the sphenoid sinus without intracranial lesion. A patient with intermittent headache visited a private clinic and presented with sphenoid lesions based on the Magnetic resonance imaging scan results. The mass was completely removed using endoscopic endonasal transsphenoidal approach without any complications and showed characteristic pathologic findings, which lead to the diagnosis of craniopharyngioma.