title: Prolactinoma with preferential infrasellar extension: a report of two cases.
abstract: The authors describe two male patients with prolactinomas which were incidentally found either during the course of a complete work up for headache or after minor head trauma. Since these tumours were located mainly in the sphenoid bone and did not show any upward growth to the suprasellar region, they were initially thought to be a primary skull base tumour; however, the serum prolactin levels of these patients were 1,179 ng/ml and 3,260 ng/ml, respectively. The authors thus emphasise the need to recognise this peculiar infrasellar growth pattern of prolactinoma.
authors.affiliation: Department of Neurosurgery, Neurological Institute, Faculty of Medicine, Kyushu University, Fukuoka, Japan. shunji@ns.med.kyushu-u.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Nishio
authors.forename: T
authors.initials: T
authors.lastname: Morioka
authors.forename: S
authors.initials: S
authors.lastname: Fujiwara
authors.forename: M
authors.initials: M
authors.lastname: Fukui
mesh_terms: D000328:Adult; D002817:Chordoma / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010911:Pituitary Neoplasms / Q000473:pathology*; D015175:Prolactinoma / Q000473:pathology*; D012658:Sella Turcica / Q000473:pathology*; D019292:Skull Base Neoplasms / Q000473:pathology*; D013100:Sphenoid Bone / Q000473:pathology; D014057:Tomography, X-Ray Computed