Xanthogranulomatous colloid cyst of the third ventricle

Summary This is a case report of a xanthogranulomatous colloid cyst of the 3rd ventricle. Posible etiologies for this rare entiry, along with the clinical problems that may be associated with it, and the differential diagnosis are discussed.     

Limbic system symptomatology associated with colloid cyst of the third ventricle

Summary The clinical manifestations of olfactory and gustatory hallucinations are commonly attributed to temporal lobe involvement. The case is presented of a 46-year-old man with prolonged episodes of olfactory and gustatory hallucinations, who was found to have a colloid cyst of the third ventricle. Exhaustive electroencephalographic and radiological studies were negative except for the cyst. Stereotaxic aspiration of the cyst resulted in immediate cessation of all symptomatology with a follow-up of 14 months.     

Ultrastructural observation on a colloid cyst of the third ventricle

Summary The case involves a colloid cyst of the third ventricle in a 20-year-old man. The lining epithelia of the cyst were composed of two different types of epithelial cells; stratified squamous cells and mucincontaining columnar cells. The presence of both squamous and glandular cells in the cyst wall supports the contention that the colloid cyst in the present case derived from an non-neuroepithelial source. The clinico-pathology of this cystic tumor is compared here with other epithelial cysts of the central nervous system (CNS), especially Rathke's cyst.     

Familial colloid cyst of the third ventricle: neuroendocrinological follow-up and review of the literature

Colloid cysts of the third ventricle are rare, benign cysts of endodermal origin. Between 1989 and 1999, eight patients with this lesion (five females, three males), with a mean age of 40.5 years (range 20–54), were identified out of 1354 operated for tumours of the central nervous system. Among the eight, two were familial. They were half sisters 38 and 28 years-old, who were diagnosed to have colloid cysts of the third ventricle on CT scanning. Transcortical excision yielded 10 and 15 mm sized colloid cysts, respectively. Moreover, both sisters developed a multinodular goiter associated with these congenital tumours. The second sibling developed hyperprolactinemia associated with macroprolactinemia. Pregnancy was only possible after bromocriptine treatment. These cases provide further evidences that colloid cysts probably have an autosomic recessive pattern of inheritance with variable penetrance.     

神经内镜治疗第三脑室肿瘤合并脑积水四例报道及文献回顾

目的 探讨第三脑室肿瘤合并脑积水经神经内镜治疗的方法和手术技巧.方法 分析北京世纪坛医院神经外科收治的4例第三脑室肿瘤合并脑积水患者(前侧部肿瘤2例,底部肿瘤1例,后部肿瘤1例)的临床资料、影像学表现,结合相关文献总结手术经验与技巧.结果 4例患者中3例采用单纯神经内镜手术,1例采用神经内镜辅助显微镜下手术.术后患者临床症状明显改善,无严重并发症及死亡病例.随访3～18月,患者复查头部MRI显示肿瘤无复发,脑积水均有不同程度改善.结论 神经内镜导航下可直达肿瘤所在位置,又可减少不必要的损伤,切除肿瘤同时可解除梗阻性脑积水,重建脑脊液循环,是一种治疗第三脑室肿瘤合并脑积水安全有效的手术方法.

Abstract：

Objective To explore the treatment methods and surgical techniques of the third ventricle tumor combined with hydrocephalus under neuroendoscope. Methods The clinical data and imaging findings of 4 patients with third ventricle tumor combined with hydrocephalus, treated with surgery under neuroendoscopy, were retrospectively analyzed; and related literatures were reviewed to conclude the surgical experiences and skills. Results Three of the 4 patients were performed surgery only by neuroendoscopy, and 1 by neuroendoscopic auxiliary microscope for the tumor complete resection. The clinical symptoms improved obviously after the surgery, and no significant complications and no dead case were noted.We followed up the 4 patients for 3-18 months; MRI showed that the tumor did not relapse and the hydrocephalus got improvement. Conclusion Endoscopic navigation can help to directly reach the locations of third ventricle tumor and decrease the unnecessary damage, which enjoys its advantages in tumor resection,relieving obstructive hydrocephalus and rebuilding the cerebrospinal fluid circulation, indicating that surgery under neuroendoscope is a safe, effective and minimally invasive method.