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Neurocirugia (Astur) 2020 May 16. Epub 2020 May 16.

Department of Neurological Surgery, Hospital Universitario Basurto, Avenida Montevideo 18, 48013 Bilbao (Vizcaya, Basque Country), Spain.

Introduction: Acute spontaneous bleeding within a colloid cyst of the third ventricle is extremely rare. Accordingly, is difficult to establish reliable prognostic factors, risk factors for obstructive hydrocephalus remain poorly defined, and there are no standard management strategies.

Case Presentation: 19-Year-old man with a colloid cyst of the third ventricle causing obstructive hydrocephalus is described, initially treated with partial endoscopic removal and ventriculo-peritoneal shunt placement. Read More

J Neurosurg Sci 2020 Feb 10. Epub 2020 Feb 10.

Department of Neurosurgery Clinic, Department of Neuroscience, Psychology, Pharmacology and Child Health, Careggi Hospital, University of Florence, Florence, Italy.

Background: The incidence of asymptomatic colloid cysts is increasing due to the widespread use of neuroimaging tools. According to previous works, familial forms (within first-degree relatives) represent 5-25% of the cases, and it is not clear whether they display specific features influencing the clinical behavior of the disease.

Methods: We reviewed the literature to extract data from papers dealing with familial colloid cysts. Read More

World Neurosurg 2020 06 27;138:84-88. Epub 2020 Jan 27.

Department of Neurosurgery, Government Medical College, Thiruvananthapuram, Kerala, India.

Background: Colloid cysts are benign and rare tumors of the brain. The growth rates of these tumors are unpredictable. These cysts can increase in size and obstruct the cerebrospinal fluid pathways producing obstructive hydrocephalus. Read More

J Clin Neurosci 2020 Jan 12;71:1-8. Epub 2019 Dec 12.

Division of Pediatric Neurosurgery, Department of Neurosurgery, UT Southwestern Medical Center, Dallas, TX, USA.

Colloid cyst are cystic lesions in the third ventricle and could render patients asymptomatic. However, there is an inherent risk of symptomatic progression, acute decompensation, and sudden death. Therefore, there is no clear consensus as how to observe or when to treat a newly diagnosed patient with a colloid cyst. Read More

World Neurosurg 2020 Mar 16;135:100-102. Epub 2019 Dec 16.

Department of Neurosurgery, Nepean Public Hospital, Sydney, Australia.

Background: The natural history of colloid cysts is imperfectly understood, and controversies remain in defining broad management strategies for incidental colloid cysts. The gradual asymptomatic regression of a colloid cyst has not been reported.

Case Description: We present a unique case demonstrating the clinically silent, gradual regression of a colloid cyst over many years. Read More

World Neurosurg 2020 Feb 7;134:e747-e753. Epub 2019 Nov 7.

Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA.

Background: The Colloid Cyst Risk Score (CCRS) was devised to identify patients with symptomatic colloid cyst and stratify risk of hydrocephalus. The CCRS considers patient age, presence of headache, colloid cyst diameter, fluid-attenuated inversion recovery hyperintensity, and location within the third ventricle.

Objective: The purpose of this study was to independently evaluate the validity of the CCRS. Read More

Surg Neurol Int 2019 30;10:169. Epub 2019 Aug 30.

Departments of Radiology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.

Background: Despite colloid cyst in the third ventricle is a very usual cause of hydrocephalus, its xanthogranulomatous variant is rare. The most important differential diagnosis is the third ventricular craniopharyngioma. To the best of the authors' knowledge, there have been few cases of xanthogranulomatous variant colloid cysts reported in the English literature. Read More

J Neurosurg 2019 Jun 28:1-9. Epub 2019 Jun 28.

1Center for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto.

Objective: Endoscopic resection of third-ventricle colloid cysts is technically challenging due to the limited dexterity and visualization provided by neuroendoscopic instruments. Extensive training and experience are required to master the learning curve. To improve the education of neurosurgical trainees in this procedure, a synthetic surgical simulator was developed and its realism, procedural content, and utility as a training instrument were evaluated. Read More

World Neurosurg 2019 Aug 11;128:e116-e128. Epub 2019 Apr 11.

Department of Neurosurgery, Ca' Foncello Hospital, Treviso, Italy.

Background: The fornix is a region of greatest neurosurgical interest in regards to its complex anatomy and surgical approaches to this area. The objective of this study was to evaluate the morphology of the triangular recess (TR) and its role in the growth pattern of the colloid cysts (CC) within the third ventricle and in the choice of the surgical approach for their removal. Furthermore, to compare the results of the dissections with measurements performed on a magnetic resonance imaging scan. Read More

World Neurosurg 2019 05 8;125:e812-e819. Epub 2019 Feb 8.

Lexington Brain and Spine Institute, Lexington Medical Center, Columbia, South Carolina, USA. Electronic address:

Objective: Deep-seated brain tumors are often best treated by primary surgical excision. Traditional microsurgical techniques can cause retraction injury and require extensive brain dissection. To mitigate this risk, stereotactic-guided tubular retractors were developed; however, the risk of shear injury remains. Read More

World Neurosurg 2019 05 1;125:e602-e611. Epub 2019 Feb 1.

Department of Neurosurgery, Ibn Sina Hospital, Kuwait City, Kuwait.

Background: The main criticism of endoscopic excision of colloid cysts of the third ventricle is the decreased ability to completely resect the cyst wall, therefore increasing the risk of recurrence. The extent of resection varies widely across the endoscopic series and is largely influenced by the surgical technique. We report the results of the rotational technique for endoscopic transforaminal excision of colloid cysts in a series of consecutive patients. Read More

World Neurosurg 2019 Mar 24;123:351-356. Epub 2018 Dec 24.

Carilion Clinic, Section of Neurosurgery, Roanoke, Virginia, USA; Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA; Virginia Tech School of Neuroscience, Blacksburg, Virginia, USA; Edward Via College of Osteopathic Medicine, Blacksburg, Virginia, USA.

Background: Colloid cysts of the third ventricle are rare, slow-growing lesions of neuroepithelial origin. Although histopathologically benign, third ventricular colloid cysts are a well-known cause of sudden, unexpected coma and death. Several theories have been proposed to describe the rare, sudden onset of severe symptomatology and rapid clinical decline due to colloid cysts. Read More

World Neurosurg 2019 Mar 19;123:286-294. Epub 2018 Dec 19.

Hamad Medical Corporate, Neurosurgery, Doha, Qatar.

Background: Primary central nervous system lymphoma is a rare malignant tumor of the central nervous system. It is associated with poor prognosis and accounts for 0.7%-0. Read More

J Clin Neurosci 2019 Apr 27;62:133-137. Epub 2018 Nov 27.

Department of Radiology, The Royal Melbourne Hospital, Parkville, VIC, Australia; Department of Radiology, The University of Melbourne, Parkville, VIC, Australia.

Purpose: To determine the incidence of the 'dot sign' in patients with colloid cysts of the third ventricle and to characterise its MRI appearances.

Materials And Methods: Single institution retrospective analysis between January 2007 and October 2016 of all patients with either an imaging or imaging and histology-confirmed diagnosis of colloid cysts of the 3rd ventricle was undertaken. For all cases, MRI signal intensities of the cyst fluid component were graded by two independent radiologists relative to brain parenchyma. Read More

World Neurosurg 2019 Feb 12;122:e279-e284. Epub 2018 Oct 12.

Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA. Electronic address:

Objective: Patients with hydrocephalus secondary to third ventricular colloid cysts can require bilateral external ventricular drain (EVD) placement while awaiting surgery. However, some patients could develop auto-fenestration of the septum pellucidum (AFSP) and only require 1 EVD. We evaluated our experience with bedside iohexol ventriculography and staged EVD placement for patients with obstructive hydrocephalus. Read More

Australas Phys Eng Sci Med 2018 Sep 9;41(3):697-711. Epub 2018 Jul 9.

Department of Neurosurgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Over 90% of craniopharyngeal brain tumors are cystic, which enables the injection of beta emitters such as phosphorus-32 (P) radio-colloid into cysts for their treatment. The aim of this study was to evaluate the clinical and theoretical modelling of Bremsstrahlung radiation dose resulting from stereotactic radio-colloid therapy of cystic craniopharyngioma tumors with P. P radio-colloid with appropriate activity concentration was injected to a head phantom, and then the Bremsstrahlung radiation spectrum and planar images were obtained using a gamma camera. Read More

BMJ Case Rep 2018 Jun 8;2018. Epub 2018 Jun 8.

Department of Psychiatry Aabenraa, Mental Health Services Region of Southern Denmark, Aabenraa, Denmark.

This report presents a young woman with psychotic symptoms that were highly suspicious of schizophrenia. Previous attempts of antidepressant therapy of mood symptoms had been ineffective. However, she also presented with discrete signs of an underlying neurological condition, and as a part of the diagnostic workup, neuroimaging revealed ventriculomegaly. Read More

Radiologe 2018 Jul;58(7):646-652

Universität des Saarlandes, Homburg/Saar, Deutschland.

Clinical Issue: Headache is the most common symptom of colloid cysts, Rathke cysts, and craniopharyngioma due to their location in the midline, being extra-axial and typically presenting in the parasellar region.

Therapeutic Problems: Although these tumors are generally considered benign, each has its typical characteristics defined by its location and histology. These individual characteristics define whether surgery is necessary at all and if so, the preferred surgical approach and resection's totality. Read More

J Clin Neurosci 2018 Jul 3;53:122-126. Epub 2018 May 3.

Department of Neurosurgery, Monash Health, Melbourne, Australia(1); Department of Surgery, Monash University, Melbourne, Australia(2). Electronic address:

Objective: Clinical significance and management of asymptomatic colloid cysts of the third ventricle is not well defined. The aim of this study was to investigate the risk of cyst progression necessitating surgical intervention during a surveillance period.

Methods: A systematic pooled analysis of the literature was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Read More

Oper Neurosurg (Hagerstown) 2018 Nov;15(5):E53-E54

Department of Neurosurgery, University of Pennsylvania, Philadelphia, Pennsylvania.

A 26-year-old woman presented to our clinic with years of headaches and mental clouding. She had a nonfocal neurological examination including benign ophthalmological examination. Head computed tomography and brain magnetic resonance imaging (MRI) demonstrated asymmetry of the lateral ventricles due to a lesion arising from the foramen of Monro. Read More

J Clin Neurosci 2018 Jan 4;47:157-159. Epub 2017 Nov 4.

Department of Radiology and Imaging, Queen Elizabeth Hospital, Hong Kong.

A middle-aged man presented with syncope and confusion. Neuroimaging revealed a third ventricular mass with obstructive hydrocephalus and bilateral convexity meningiomata. The masses were excised and pathology showed a colloid cyst and WHO grade 1 meningiomata respectively. Read More

World Neurosurg 2017 Dec 9;108:995.e1-995.e4. Epub 2017 Sep 9.

Department of Neurosurgery, NRI Academy of Sciences, Chinakakani, Mangalagiri, Guntur, Andhra Pradesh, India.

Introduction: Acquired Chiari malformation and associated syringomyelia have been previously described following lumbar puncture/drainage, lumboperitoneal shunts, and spontaneous cerebrospinal fluid leakage. In addition to these etiologies, space-occupying lesions such as meningiomas, epidermoid cysts, medulloblastomas, and arachnoid cysts are rare causes of acquired Chiari malformation and syringomyelia. We report a rare case of colloid cyst with hydrocephalus causing secondary Chiari malformation with syringomyelia. Read More

Asian J Neurosurg 2017 Apr-Jun;12(2):203-206

Division of Neurosurgery, Toronto Western Hospital, Toronto, Ontario, Canada.

While there is little controversy regarding the treatment of symptomatic colloid cysts, the optimal management of "incidentally" detected and asymptomatic colloid cyst remains unclear. The age of the patient, duration and significance of symptoms related to the cyst, size and radiological characteristics of the cyst and the presence of hydrocephalus are all factors to be considered before considering surgery. While surgery most often provides good results in the majority of patients, complications do occur. Read More

Clin Pract Cases Emerg Med 2017 May 6;1(2):84-86. Epub 2017 Mar 6.

Carl R. Darnall Army Medical Center, Department of Emergency Medicine, Fort Hood, Texas.

A 29-year-old male presented to our emergency department with complaints of a left frontal headache, similar to his prior headaches. He also reported about 30 minutes of facial and tongue numbness, left arm weakness, slurred speech and changes in hearing that had resolved prior to his arrival. Despite the short duration of the other neurologic symptoms, he also endorsed persistent "dizziness. Read More

Case Rep Radiol 2017 31;2017:2467085. Epub 2017 Jan 31.

French Medical Institute for Children (FMIC), Kabul, Afghanistan.

A 10-year-old boy with the history of headache, anorexia, and vomiting was referred to our department to undergo a brain CT scan. CT images demonstrated a well-defined, rounded, hyperdense lesion at the level of the foramen of Monro causing moderate dilatation of the lateral ventricles. An 11-year-old girl with a long history of a headache was also referred to undergoing a brain MRI. Read More

Acta Neurochir Suppl 2017 ;124:89-92

Neurosurgical Department, Regina Elena National Cancer Institute, Via Elio Chianesi 53, Rome, 00144, Italy.

Neuroendoscopy is now considered to be a minimally invasive surgical approach for expanding lesions bulging into the ventricle, and it is also considered to be a relevant tool for performing biopsy procedures, fenestration of cystic walls, or for performing tumor removal in selected cases. Furthermore, the use of neuroimaging and the accurate follow-up of brain tumor patients have allowed the documentation of tumoral and pseudotumoral cystic areas that cause the obstruction of cerebrospinal fluid (CSF) pathways. Neuroendoscopic procedures enable the fenestration of cystic lesions, in addition to enabling third ventriculostomy or septostomy to restore CSF pathways. Read More

World Neurosurg 2018 Jan 23;109:31-35. Epub 2016 Dec 23.

Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address:

Background: Colloid cyst is a gelatin-containing cyst in the brain almost always found in the third ventricle. The specific shape and location of these cysts, a round well-delineated mass in the rostral part of the third ventricle adjacent to the foramen of Monro, on imaging are the main findings for diagnosis. Several masses of the third ventricle masquerading colloid cysts on images have been reported. Read More

World Neurosurg 2017 Feb 21;98:869.e7-869.e12. Epub 2016 Dec 21.

Department of Neurosurgery, Gulhane Education and Training Hospital, Ankara, Turkey. Electronic address:

Background: Colloid cysts (CCs) are rarely found in the sellar-suprasellar region. Differential diagnosis of CCs is more challenging in this region because many other cystic lesions may locate or invade sellar or suprasellar structures. We present a large and unusual case of sellar-suprasellar CC with extension into the suprasellar, interpeduncular, and prepontine cisterns. Read More

Wideochir Inne Tech Maloinwazyjne 2016 22;11(3):200-207. Epub 2016 Jul 22.

Department of Neurosurgery and Neurotraumatology, Jagiellonian University, Medical College, Krakow, Poland.

Introduction: Intraventricular endoscopic operations are usually undertaken in patients with an enlarged ventricular system that provides good access to the ventricles, proper anatomic orientation and safety of maneuvers within the ventricles.

Aim: The preliminary assessment of the feasibility of endoscopic procedures in cases occurring without hydrocephalus.

Material And Methods: Eleven patients with intraventricular tumor diagnosed in neuroimaging studies were included in the study. Read More

Rev Assoc Med Bras (1992) 2016 Sep-Oct;62(5):399-406

MD, specialist in Pathological Anatomy - Department of Pathology, Centro Hospitalar Lisboa Norte, Lisboa. Lecturer, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.

Objective: As a result of the use of neuroimaging techniques, silent pituitary lesions are diagnosed more and more frequently; however, there are few published post-mortem studies about this gland. Incidence data of pituitary lesions are rare and in Portugal they are outdated or even non-existent. The aim of this study is to determine the prevalence of normal patterns and incidental post-mortem pituitary pathology at Centro Hospitalar Lisboa Norte, analyzing the associations with clinical data and assessing the clinical relevance of the findings. Read More

Neurosurg Focus 2016 Sep;41(3):E13

Department of Cardiovascular Surgery, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts.

OBJECTIVE Rigid endoscopes enable minimally invasive access to the ventricular system; however, the operative field is limited to the instrument tip, necessitating rotation of the entire instrument and causing consequent tissue compression while reaching around corners. Although flexible endoscopes offer tip steerability to address this limitation, they are more difficult to control and provide fewer and smaller working channels. A middle ground between these instruments-a rigid endoscope that possesses multiple instrument ports (for example, one at the tip and one on the side)-is proposed in this article, and a prototype device is evaluated in the context of a third ventricular colloid cyst resection combined with septostomy. Read More

Clin Neurol Neurosurg 2016 Oct 12;149:154-65. Epub 2016 Aug 12.

Department of Neurosurgery, Hannover Medical School, Germany.

Objective: Apart from the "common" lesions (e.g. pituitary adenomas, Rathke's cleft cysts, meningiomas and craniopharyngiomas), there is a plethora of rare tumors or tumor-mimicking lesions in the sellar and suprasellar region (SSR). Read More

J Neurol Surg A Cent Eur Neurosurg 2017 Jan 18;78(1):78-81. Epub 2016 Jul 18.

Department of Neurosurgery, Kaleida Health System, Buffalo, New York, United States.

Colloid cysts are considered benign brain tumors and usually occur in the anterior third ventricle. The clinical presentation may be nonspecific and heterogeneous including headaches, visual changes, nausea, and vomiting. The symptomatology is frequently associated with the development of hydrocephalus. Read More

Br J Neurosurg 2017 Oct 31;31(5):605-606. Epub 2016 May 31.

a Department of Neurosurgery , Hull Royal Infirmary , Anlaby Road , Hull , HU3 2JZ , United Kingdom of Great Britain and Northern Ireland.

This 47-year-old gentleman presented with acute hydrocephalus secondary to a colloid cyst. Bilateral external ventricular drains (EVDs) were inserted. The patient developed a third nerve palsy during post-operative period - cranial imaging demonstrated the tip of an EVD in this vicinity. Read More

J Neurol Surg A Cent Eur Neurosurg 2016 Jul 11;77(4):312-20. Epub 2016 Apr 11.

Department of Neurosurgery, NSCB Medical College Jabalpur, Jabalpur, Madhya Pradesh, India.

Background Retraction of the overlying brain can be difficult without causing significant trauma when using traditional brain retractors with blades. These retractors may produce focal pressure and may result in brain contusion or infarction. Tubular retractors offer the advantage of low retracting pressure that is less likely to be traumatic. Read More

World Neurosurg 2016 Jun 9;90:704.e19-704.e22. Epub 2016 Mar 9.

Department of Neurosurgery, Paris Descartes University, Paris, France; Department of Neurosurgery, University of Texas Southwestern, Dallas, Texas, USA; Department of Radiology, Bicetre University Hospital, France; Department of Neurosurgery, Sainte-Anne University Hospital, Paris, France. Electronic address:

Background: Colloid cysts represent 0.5%-1% of intracranial tumors and most commonly occur in the third ventricle near the Monro foramen. Although benign, if the lesion obstructs the foramen abruptly, sudden death may ensue. Read More

J Neurosurg 2016 12 11;125(6):1420-1430. Epub 2016 Mar 11.

Department of Neurological Surgery and.

OBJECTIVE Colloid cysts are rare, histologically benign lesions that may result in obstructive hydrocephalus and death. Understanding the natural history of colloid cysts has been challenging given their low incidence and the small number of cases in most reported series. This has complicated efforts to establish reliable prognostic factors and surgical indications, particularly for asymptomatic patients with incidental lesions. Read More

J Neurosurg 2016 09 29;125(3):585-90. Epub 2016 Jan 29.

Department of Neurosurgery, University of Florida, Gainesville, Florida; and.

OBJECTIVE Many colloid cyst patients present with obstructive hydrocephalus that resolves after resection of the cyst. However, a proportion of patients with these cysts will require cerebrospinal fluid shunting after tumor resection, despite resolution of the obstruction at the foramina of Monro. The goal of this study was to determine if colloid cyst size or preoperative ventricular volume predicted the need for postresection shunting. Read More

Psychiatr Danub 2015 Sep;27 Suppl 1:S315-20

Cambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Hills Road, Cambridge, CB2 0QQ, United Kingdom.

Colloid cysts account for approximately 2% of primary brain tumours and the majority of cases are identified in the fourth and fifth decade. They are small, gelatinous neoplasms lined by a single layer of mucin-secreting columnar epithelium that are thought to arise from errors in folding of the primitive neuroepithelium. They develop in the rostral aspect of the third ventricle in the foramen of Monro in 99% of cases and despite their benign histology carry a poor prognosis, with a mortality greater than 10% in symptomatic cases. Read More

World Neurosurg 2015 Dec 2;84(6):1997-2001. Epub 2015 Jul 2.

Department of Neurosurgery, Loghman e Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Background: Colloid cysts are benign third ventricle lesions that need to be diagnosed correctly because of their association with sudden death. Chemical or aseptic meningitis is a rare presentation of a colloid cyst.

Methods: We present a case of a 69-year-old man with fever, alteration of mental status, and meningismus. Read More

J Neurosurg 2015 Aug 1;123(2):352-6. Epub 2015 May 1.

Centre for Minimally Invasive Neurosurgery, Prince of Wales Hospital, Sydney, New South Wales, Australia; and.

Object: Surgical indications for patients with pineal cysts are controversial. While the majority of patients harboring a pineal cyst require no treatment, surgery is a well-accepted option for a subset of those patients with secondary hydrocephalus or Parinaud's syndrome. The majority of pineal cysts are identified incidentally during workup for other potential conditions, which may or may not be related to the presence of the cyst. Read More

Asian J Neurosurg 2014 Oct-Dec;9(4):189-92

Department of Neurosurgery, Narayana Medical College Hospital, Chinthareddypalem, Nellore, Andhra Pradesh, India.

Introduction: Colloid cysts are benign space-occupying lesions that account for 0.5-1.0% of brain tumors and arise from the velum interpositum or the choroid plexus of the third ventricle. Read More

Neurology 2015 Feb;84(6):e41-2

From the Department of Neurosurgery, Institute of Neurosciences, Southern General Hospital, Glasgow, UK.

Ups J Med Sci 2015 Mar 10;120(1):59-62. Epub 2014 Dec 10.

Department of Neuroscience, Section of Neurosurgery, Uppsala University , Uppsala , Sweden.

In this case report we describe colloid cysts in the third ventricles of monozygotic twin sisters. They were 26 years old when their condition was discovered. One woman was admitted to us on an emergency basis, with signs of high intracranial pressure such as unconsciousness and extension posturing. Read More

Middle East Afr J Ophthalmol 2014 Oct-Dec;21(4):344-6

Department of Medicine, Nizwa Hospital, Ministry of Health, Sultanate of Oman.

This report describes a middle-aged man presenting to the ophthalmologist with history of seeing floaters before both eyes since 2-weeks duration. A history of intermittent headache and dizziness of recent onset was elicited on questioning. Ocular examination showed bilateral early papilloedema and mild vitreous hemorrhage. Read More

Am J Emerg Med 2015 Feb 8;33(2):314.e1-2. Epub 2014 Aug 8.

Duzce University, School of Medicine, Department of Emergency Medicine, Duzce, Turkey.

Trauma patients consist vast majority of the patients who admit to emergency department, and most of them have a head trauma. A 58-year-old patient was taken to emergency department with head trauma, and a hyperdense lesion neighboring to third ventricle was detected. A diagnosis of colloid cyst was made in the patient who was being followed up for hemorrhage. Read More

Bosn J Basic Med Sci 2014 Aug 14;14(3):132-5. Epub 2014 Aug 14.

University Medical Centre Maribor, Department of Neurosurgery.

Colloid cysts are benign intracranial tumours usually occurring in the front part of the third ventricle. Clinical presentation may be non-specific and heterogeneous. The problems are frequently associated with development of hydrocephalus, these cysts may cause. Read More

J Neurosurg 2014 Nov 22;121(5):1185-8. Epub 2014 Aug 22.

Departments of Medical Imaging.

The finding of a colloid cyst on neuroimaging is often incidental. These lesions are usually located at the foramen of Monro, are hyperdense on CT scans, and generally demonstrate signal intensity of water on MR images, although this depends on their content. When symptomatic, they frequently present with headaches and nausea due to an obstructive hydrocephalus. Read More

BMJ Case Rep 2014 Jul 21;2014. Epub 2014 Jul 21.

Departments of Neurosurgery and Radiology, Medical University of South Carolina, Charleston, South Carolina, USA.

A patient presented with headaches and was found to have a colloid cyst in the third ventricle and ventriculomegaly. The patient underwent endoscopic colloid cyst resection and third ventriculostomy without incidence. Prior to emergence, a blown right pupil was acutely noted, and bright red blood emanated from the ventricular drain that was routinely placed in the endoscopy tract at the conclusion of the procedure. Read More

Neurosciences (Riyadh) 2014 Jan;19(1):43-6

Department of Neurosurgery, Stanford University, Stanford, California, United States of America.

Colloid cysts, benign outgrowths from the roof of the third ventricle, warrant resection when they become symptomatic. Historically, this has been performed by craniotomy and a transcortical or a transcallosal approach that employs a pair of fixed blade retractors and an operating microscope. Less invasive endoscopic techniques have employed rigid endoscopes with single or dual working channels. Read More