Six patients with masses of the anterosuperior portion of the third ventricle were imaged with MR and CT. Four patients had proved colloid cysts, one patient had a proved astrocytoma, and one patient had a presumed colloid cyst. Multiplanar MR imaging provided accurate localization of the anterosuperior third-ventricle mass in all cases. The MR intensity characteristics of the colloid cysts var...

Colloid cysts are rare benign tumors of the third ventricle with diverse clinical presentation, which vary from incidentally found cysts to acute death. An uncommon hemorrhage in these cysts is a life threatening complication which can cause obstructive hydrocephalus with acute deterioration of the patient and sudden death. We present a case of 35-year-old man with large hemorrh...

AIM Colloid cysts are uncommon lesions, which most commonly occur in the fourth through seventh decade. The authors hereby report a series of colloid cysts in the pediatric age group. MATERIAL AND METHODS A retrospective study was conducted on all patients of colloid cyst that underwent surgery at our institute over a period of seven years (2005 to 2011). Patients above the age of 20 were exc...

Colloid cysts are benign intracranial lesions, that account only 0.2-2% of intracranial lesions, mostly localized in the roof of the third ventricle. Although the cysts are histological benign, they sustain significant neurological presentation or death due to cerebrospinal fluid (CSF) obstruction and acute hydrocephalus. Cavum septi pellucidi, another pathology which can cause similar results,...

Purpose: The aim of this study was to investigate the feasibility and effectiveness of endoscopic neurosurgery for patients with third ventricular colloid cysts without ventriculomegaly. Methods: Seventy-one patients with third ventricular colloid cysts were identified and recruited to this study. Eighteen of these patients did not have concomitant hydrocephalus and underwent primary endoscopic...

OBJECT To determine the natural history of colloid cysts of the third ventricle in patients in whom the cysts were incidentally discovered, the authors retrospectively reviewed cases observed during the modern neuroimaging era (1974-1998). METHODS During this 25-year interval, 162 patients with colloid cysts were examined and cared for at our center. Sixty-eight patients (42%) were thought to...

Immunohistochemical characterization of 14 cases of intracranial cysts was performed. Among these 14 cases, five different types of cysts were represented; Rathke's cleft cyst (4 cases), neurenteric cyst (2 cases), colloid cyst (1 case), choroidal epithelial cyst (2 cases) and arachnoid cyst (5 cases). Immunohistochemical evaluation utilized antibodies to glial fibrillary acidic protein (GFAP),...

BACKGROUND Surgical approaches to colloid cysts of the third ventricle have evolved over time. In recent years, endoscopy has been recognized as an effective alternative to open surgery. The disadvantage of endoscopic treatment is the difficulty in controlling the adhesion of the cyst to the roof of the third ventricle and in obtaining complete removal of the cyst. OBJECTIVE To design and car...

OBJECTIVE To investigate the increasing incidence of hydrocephaly at the Hospital CAISM-UNICAMP and to identify its probable causes. METHODS All children with hydrocephaly delivered at CAISM from September 1987 to December 1998 were studied. Those children presenting hydrocephaly due to neural tube defects were excluded. Data were collected from medical records of the Perinatal Genetics Secto...