title: Neuroimaging appearance of pituitary abscess complicated with close inflammatory lesions--case report.
abstract: A 13-year-old girl with a pituitary abscess complained of continuous headache and bitemporal hemianopsia after a common cold. However, she had no inflammatory reactions on admission. Computed tomography showed a low-density sellar mass lesion extending to the suprasellar cistern with a peripheral low-density area, and ring enhancement of the capsule with a particularly thick region. Magnetic resonance imaging showed the mass lesion as a low- and high-intensity area on the T1- and T2-weighted images, respectively. The iso-intense rim of the lesion and the left frontal mass lesion adjacent to the capsule were enhanced by gadolinium-diethylenetriaminepenta-acetic acid. Magnetic resonance imaging also indicated only mild sphenoidal sinusitis which may be representative of the inflammatory process. Careful assessments of neuroimaging findings and preceding trivial inflammatory signs are necessary for the correct diagnosis of a pituitary abscess.
authors.affiliation: Department of Neurosurgery, Hirosaki University School of Medicine, Aomori.
authors.forename: T
authors.initials: T
authors.lastname: Takahashi
authors.forename: S
authors.initials: S
authors.lastname: Shibata
authors.forename: K
authors.initials: K
authors.lastname: Ito
authors.forename: S
authors.initials: S
authors.lastname: Ito
authors.forename: M
authors.initials: M
authors.lastname: Tanaka
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
mesh_terms: D000038:Abscess / Q000150:complications* / Q000175:diagnosis* / Q000601:surgery; D000293:Adolescent; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D003399:Craniotomy; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D010900:Pituitary Diseases / Q000150:complications* / Q000175:diagnosis* / Q000601:surgery; D015524:Sphenoid Sinusitis / Q000150:complications*; D014057:Tomography, X-Ray Computed
chemical_list: D000900:Anti-Bacterial Agents