title: A pituitary abscess showing high signal intensity on diffusion-weighted imaging.
abstract: The utility of diffusion-weighted imaging (DWI) for the diagnosis of intracranial abscesses has already been established. However, the use of DWI for pituitary abscesses has not been previously reported. We present a case of postoperative pituitary abscess in which T1-weighted and T2-weighted magnetic resonance imaging (MRI) revealed a supra-sellar cystic mass, with the cyst contents showing high intensity on DWI. This case suggests that DWI is useful for the diagnosis of pituitary abscesses.
authors.affiliation: Department of Neurosurgery, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan. ttakayasu-nsu@umin.ac.jp
authors.forename: Takeshi
authors.initials: T
authors.lastname: Takayasu
authors.forename: Fumiyuki
authors.initials: F
authors.lastname: Yamasaki
authors.forename: Atsushi
authors.initials: A
authors.lastname: Tominaga
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Hidaka
authors.forename: Kazunori
authors.initials: K
authors.lastname: Arita
authors.forename: Kaoru
authors.initials: K
authors.lastname: Kurisu
mesh_terms: D000368:Aged; D001922:Brain Abscess / Q000382:microbiology / Q000473:pathology* / Q000601:surgery; D020863:Central Nervous System Cysts / Q000150:complications / Q000601:surgery; D038524:Diffusion Magnetic Resonance Imaging; D005682:Gadolinium; D006801:Humans; D008297:Male; D019635:Neurosurgical Procedures; D010900:Pituitary Diseases / Q000382:microbiology / Q000473:pathology* / Q000601:surgery; D010902:Pituitary Gland / Q000382:microbiology / Q000473:pathology* / Q000601:surgery; D011183:Postoperative Complications / Q000382:microbiology / Q000473:pathology* / Q000601:surgery; D011552:Pseudomonas Infections / Q000473:pathology; D019275:Radiopharmaceuticals
chemical_list: D019275:Radiopharmaceuticals; D005682:Gadolinium