colloid cysts are mucous-filled masses with an outer fibrous layer. these cysts are rare developmental malformation and not a true neoplasm. they usually found incidentally and are asymptomatic; but in some cases may associate with rapid neurologic deterioration, herniation, and sudden death. recognition of this rare but important diagnosis may result in decreasing mortality. in this report, we...

Colloid cysts represent between 0.25-1 % of intracranial tumors [1-3]. Although most frequently located in the third ventricle, they are also found throughout the ventricular system [4]. Extraventricular location is rare [5]. We describe a case of a neuroepithelial cyst located in the craniocervical region, which was examined by CT and vertebral angiography, with subsequent biochemical study of...

Colloid cysts appear most commonly in the third ventricle, their occurrence in the sellar region is uncommon. The authors report a female patient with a pituitary colloid cyst. She was diagnosed incidentally with a sellar lesion by a routine paranasal computed tomography examination performed for planning of a dental implant surgery. Radiologic examinations revealed a pituitary lesion that was ...

OBJECT Patients harboring colloid cysts of the third ventricle can present with acute neurological deterioration, or the first indication of the lesion may appear when the patient suddenly dies. The risk of such an occurrence in a patient already identified as harboring a colloid cyst is unknown. The goal of this study was to estimate the risk of acute deterioration in patients with colloid cys...

BACKGROUND Acute neurological deterioration and death in a patient harboring a colloid cyst of the third ventricle remains a poorly understood phenomenon. Sudden neurological derangement caused by spontaneous bleeding within a colloid cyst is a rare and potentially fatal event, usually requiring immediate diagnosis and emergency surgical treatment. CASE DESCRIPTION A 47-year-old male presente...

BACKGROUND Colloid cysts of the third ventricle are rare benign intracranial non-neoplastic cysts. Headache is the most common symptom. We present a case of sudden death due to colloid cyst in a 17 year old female who had symptoms of intermittent headaches. CASE PRESENTATION A 17 year old female presented with intermittent mild headaches for a period of two years. She complained of severe hea...

Background: Colloid cysts, common benign lesions of the third ventricle, have rarely been reported in uncommon extraventricular locations such as pituitary fossa. Even sellar region, it is usually seen between anterior and posterior lobes (pars intermedia). Case Description: Here, we report a case female patient, who was incidentally diagnosed with colloid cyst, while being evaluated for nonspe...

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...