CASE REPORT : Inflamed Symptomatic Sellar Arachnoid Cyst; Case Report = CASE REPORT : Inflamed Symptomatic Sellar Arachnoid Cyst; Case Report

다국어 초록 (Multilingual Abstract)

Sellar arachnoid cysts are rare; an infected arachnoid cyst is extremely rare as only one case has been reported to date in the literature. Here, we report a patient with an infected or inflamed sellar arachnoid cyst that was successfully treated with transsphenoidal surgery (TSA). A 53-year-old female with a his-tory of chronic sinusitis developed a headache 5 months ago, and one month before admission poly-uria, polydipsia, and abnormal vaginal bleeding occurred. The magnetic resonance imaging (MRI) showed a sellar cystic mass with a thickened pituitary stalk. Preoperative hormonal study revealed nor-mal pituitary hormone levels except for a moderate elevation of prolactin. She was diagnosed with dia-betes insipidus of the central nervous system origin based on a water-deprivation test. TSA was per-formed under an impression of symptomatic Rathke`s cleft cyst according to the MRI findings. Intraoperative findings showed confirmation of turbid intracystic contents, but micro-organisms were unidentified on microbial culture. Pathology of the cyst wall revealed inflamed meningoepithelial lining cells compatible with an arachnoid cyst.