title: Pituitary abscess in a patient with painless thyroiditis.
abstract: The preoperative diagnosis of pituitary abscess is difficult. The case of a 56-year-old man with a pituitary abscess and painless thyroiditis is presented. There has been no previous such report. The differential diagnosis includes pituitary abscess, lymphocytic adenohypophysitis or infundibuloneurohypophysitis, share clinical symptoms of panhypopituitarism and diabetes insipidus, and is of critical importance as the treatment of these conditions differ. The association with painless thyroiditis suggests a diagnosis of lymphocytic adenohypophysitis or infundibuloneurohypophysitis. However, the coincidence of pituitary abscess and painless thyroiditis was observed in our patient, and thus though rare, should be considered. Surgical exploration and histopathological examination are essential for the differential diagnosis of these diseases.
authors.affiliation: Department of Neurosurgery, Ichihara-City, Chiba, Japan. akirakun@med.teikyo-u.ac.jp
authors.forename: Akira
authors.initials: A
authors.lastname: Matsuno
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Ogino
authors.forename: Haruko
authors.initials: H
authors.lastname: Katayama
authors.forename: Tadashi
authors.initials: T
authors.lastname: Nagashima
mesh_terms: D001922:Brain Abscess / Q000150:complications* / Q000175:diagnosis* / Q000503:physiopathology; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010900:Pituitary Diseases / Q000150:complications* / Q000175:diagnosis* / Q000503:physiopathology; D013966:Thyroiditis / Q000150:complications* / Q000503:physiopathology