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Coexıstence of Ectopıc Posterıor Pıtuıtary and Sellar/Suprasellar Arachnoıd Cyst: A Case Report.
Current Medical Imaging ( IF 1.1 ) Pub Date : 2020-09-30 , DOI: 10.2174/1573405616666200530210847
Suzan Saylisoy 1 , Goknur Yorulmaz 2
Affiliation  

Background: The ectopic posterior pituitary (EPP) is a rare condition characterized by the ectopic location of the posterior pituitary lobe associated with varying degrees of stalk anomalies. The arachnoid cysts (AC) are benign lesions of the arachnoid, which account for 1% of all intracranial space-occupying lesions. Sellar/suprasellar ACs account for approximately 1% of all ACs. This is the first case of coexistence EPP with sellar/suprasellar AC.

Case Report: A 67-year-old woman presented with 6 months history of fatigue. Her medical history was positive for irregular menstruation. Her endocrine examinations indicated low free thyroxine level with low TSH level, low oestradiol with low gonadotrophin level, slightly elevated prolactin level. Her Insulin-like growth factor-1 was below the normal levels. Dynamic contrast hypophysis MRI revealed a sellar cystic lesion with a dimension of 18 × 14 × 14 mm, extending from the suprasellar cistern, traversing the diaphragma sellae and reaching the level of the floor of the 3rd ventricle, consistent with sellar/suprasellar AC. There was no wall enhancement. The optic chiasm was compressed. The precontrast T1-weighted magnetic resonance images did not demonstrate the characteristic bright spot of posterior pituitary within the sella, which was higher in position, in the region of the median eminence. The pituitary stalk was not present.


中文翻译:

异位后垂体和鞍/鞍上蛛网膜囊肿的共存:病例报告。

背景:异位垂体后叶 (EPP) 是一种罕见的疾病,其特征是垂体后叶的异位位置与不同程度的柄异常相关。蛛网膜囊肿(AC)是蛛网膜的良性病变,占所有颅内占位性病变的1%。鞍/鞍上 AC 约占所有 AC 的 1%。这是 EPP 与鞍/鞍上 AC 共存的第一个案例。

病例报告:一名 67 岁女性因疲劳史 6 个月就诊。她的病史为月经不调阳性。她的内分泌检查显示游离甲状腺素水平低,TSH 水平低,雌二醇水平低,促性腺激素水平低,催乳素水平略高。她的胰岛素样生长因子-1 低于正常水平。动态对比垂体 MRI 显示一个尺寸为 18 × 14 × 14 mm 的鞍囊性病变,从鞍上池延伸,穿过鞍膈到达第三脑室底水平,与鞍上/鞍上 AC 一致。没有墙壁增强。视交叉被压缩。对比前 T1 加权磁共振图像未显示蝶鞍内垂体后叶的特征性亮点,在中间隆起的区域中,它的位置更高。垂体柄不存在。
更新日期:2020-10-19
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