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World Neurosurg 2018 Dec 24. Epub 2018 Dec 24.

Carilion Clinic, Section of Neurosurgery, 1906 Belleview Ave, Roanoke, VA 24014, USA; Virginia Tech Carilion School of Medicine, 2 Riverside Circle, Roanoke, VA 24016, USA; Virginia Tech School of Neuroscience, 300 Turner Street NW, Blacksburg, VA 24061, USA; Edward Via College of Osteopathic Medicine, 2265 Kraft Dr, Blacksburg, VA, 24060, USA. Electronic address:

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

J Clin Neurosci 2018 Nov 26. Epub 2018 Nov 26.

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

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

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

Asian J Neurosurg 2013 Jul;8(3):162

Department of Neurosurgery, L. T. M. G. Hospital, Mumbai, Maharashtra, India.

Colloid cysts are cystic lesions located at the anterior part of third ventricle, close to foramen of Monro and contain colloid material. Hemorrhage in a colloid cyst is very rare. On literature review, we found only six cases of hemorrgic colloid cyst; among them, four were diagnosed at postmortem examination. Read More

BMJ Case Rep 2013 Oct 24;2013. Epub 2013 Oct 24.

Department of Psychology, Sheffield Hallam University, Sheffield, UK.

We report a rare case of a patient unable to read (alexic) and write (agraphic) after a mild head injury. He had preserved speech and comprehension, could spell aloud, identify words spelt aloud and copy letter features. He was unable to visualise letters but showed no problems with digits. Read More

J Neuropsychiatry Clin Neurosci 2013 ;25(3):E01-2

Eur J Nucl Med Mol Imaging 2013 Oct 6;40(10):1532-41. Epub 2013 Jun 6.

Joint Department of Physics, Institute of Cancer Research, Sutton, London, SM2 5NG, UK,

Purpose: (32)P-chromic phosphate colloid treatments of astrocytoma and craniopharyngioma cystic brain tumours in paediatric patients are conventionally based on a sphere model under the assumption of uniform uptake. The aims of this study were to determine the distribution of the absorbed dose delivered by (32)P on a patient-specific basis and to evaluate the accuracy with which this can be predicted from a pretherapy administration of (99m)Tc-Sn colloid.

Methods: Three patients were treated with (32)P-chromic phosphate colloid following (99m)Tc-Sn colloid administrations. Read More

J Neurol Surg A Cent Eur Neurosurg 2014 Sep 22;75(5):376-80. Epub 2013 May 22.

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

Background: Microsurgical resection, stereotactic aspiration, endoscopically assisted microsurgical resection, and ventriculoperitoneal shunt have been the treatment options for colloid cysts of the third ventricle. Recently, an endoscopic approach has been recognized as an effective alternative to open surgery. There is suspicion about the long-term recurrence rate and about obtaining complete removal of cyst. Read More

Neurosurg Focus 2013 Jan;34(1 Suppl):Video 7

Goodman Campbell Brain and Spine, Indiana University Department of Neurological Surgery, Indianapolis, Indiana 46202, USA.

Anterior third ventricular lesions present with a variety of symptoms related to cerebrospinal fluid flow obstruction and mass effect. Colloid cysts are among the most common lesions in the region. They usually present with ventriculomegaly, leading to headaches, vertigo, or, rarely, decreased mental status due to the development of acute hydrocephalus. Read More

Clin Radiol 2013 Mar 11;68(3):e101-13. Epub 2012 Dec 11.

Department of Neuroradiology, Frenchay Hospital, Bristol, UK.

Thunderclap headache (TCH) is an acute and severe headache that has maximum intensity at onset; TCH can be primary or secondary. Primary TCH is diagnosed when no underlying cause is discovered; however, imaging is crucial in distinguishing secondary causes, which are wide-ranging. The radiologist should be aware of the list of potential diagnoses. Read More

Turk Neurosurg 2012 ;22(6):783-4

University Hospital Zagreb, Department of Radiology, Zagreb, Croatia.

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 hemorrhagic colloid cyst of a third ventricle causing acute obstructive hydrocephalus even though magnetic resonance image with low T2 signal of the cyst suggested its clinically stable nature. Read More

Neurochirurgie 2013 Apr 10;59(2):81-4. Epub 2012 Nov 10.

Clinique universitaire de neurochirurgie, hôpital Laënnec, CHU de Nantes, boulevard Jacques-Monod, 44800 Saint-Herblain, France.

Colloid cysts of the third ventricle are rare benign lesions. We report here an exceptional familial case defined by the evidence of two colloid cysts in two relatives of the first degree, a mother and her daughter in our description. Only 15 cases are reported in the literature. Read More

J Neurosurg 2013 Mar 9;118(3):498-501. Epub 2012 Nov 9.

Department of Neurosurgery, Osaka Medical College, Takatsuki, Osaka, Japan.

Colloid cysts of the third ventricle presenting with acute obstructive hydrocephalus due to intracystic and intraventricular hemorrhage are extremely rare. The authors report a case of a 43-year-old man with a hemorrhagic colloid cyst that was treated using endoscopic surgery. A small colloid cyst of the third ventricle was initially diagnosed in the patient, and he was treated conservatively at that time. Read More

J Am Podiatr Med Assoc 2012 Sep-Oct;102(5):419-21

East Valley Foot and Ankle Specialists, Mesa, AZ, USA.

Nephrogenic systemic fibrosis (NSF) is a severely debilitating disease that was first described in the literature by Cowper and colleagues in 2000. It is pertinent to the field of podiatry because patients with NSF first manifest cutaneous symptoms in the lower extremity in the form of fibrosing lesions. To date, these lesions have been documented only in people with moderate to severe kidney failure. Read More

Pediatr Radiol 2012 Sep 18;42(9):1130-3. Epub 2012 Apr 18.

Radiology Department, Izmir Tepecik Training and Research Hospital, Izmir, Turkey.

We report MRI with diffusion-weighted imaging, and multidetector CT angiography findings in a child with complete agenesis of the corpus callosum associated with a colloid cyst and trifurcation of the anterior cerebral artery. Although rare, a colloid cyst should be considered in the differential diagnosis of midline lesions in children with agenesis of the corpus callosum since it may require surgical intervention. Read More

Surg Neurol Int 2012 15;3:24. Epub 2012 Feb 15.

Department of Neurosurgery, Ramón y Cajal University Hospital, Madrid, Spain.

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 presented with acute right-sided hemiparesis and speech impediment, followed by rapid deterioration of consciousness. Read More

World Neurosurg 2013 Feb 10;79(2 Suppl):S18.e1-8. Epub 2012 Feb 10.

Brain Tumor Center & Pituitary Disorders Program, John Wayne Cancer Institute at Saint John's Health Center, Santa Monica, California, USA.

Objective: Deep-seated intraventricular and intraparenchymal lesions have traditionally been resected via transcortical routes, often requiring the use of retractors to maintain the corridor created to reach the lesion and proceed with a bimanual microsurgical resection. A transparent cylindrical conduit (port) has been developed to resect deep-seated lesions using the endoscope or, more recently, Video Telescopic Operating Microscopy (VTOM) for visualization. We describe the surgical technique of the port technique and discuss the evolution of the concept of intraaxial brain surgery performed through a conduit. Read More