An Intracranial Calcification, Probably of Choroid Plexus

Radiology ◽  
1930 ◽  
Vol 15 (2) ◽  
pp. 268-273 ◽  
Author(s):  
John A. Beals
Keyword(s):  
Choroid Plexus ◽  
Intracranial Calcification

scholarly journals Physiological Intracranial Calcification in Eastern Indian Population-A CT Scan Study

2017 ◽  
Vol 06 (01) ◽  
pp. 059-070
Author(s):  
Panchali Som ◽  
Rajarshi Roy ◽  
Sumit Datta ◽  
Asis Kumar Ghosal ◽  
Anubha Saha ◽  
...  
Keyword(s):  
Pineal Gland ◽  
Ct Scan ◽  
Choroid Plexus ◽  
Traffic Accidents ◽  
Indian Population ◽  
Road Traffic ◽  
Brain Parenchyma ◽  
Intracranial Calcification ◽  
Falx Cerebri ◽  
Cross Sectional

Abstract Background and Aims:Knowledge of physiological calcification in brain parenchyma is essential to avoid misinterpretation during radiological evaluation. The calcifications are commonly seen in pineal gland, falx cerebri, tentorium cerebelli and choroid plexus. Objective:To determine the incidence of physiological intracranial calcification and its relationship to age and sex in eastern Indian population. Materials and Method: A cross sectional descriptive study of CT scan brain was performed in age group between 20-80 yrs in eastern India. The study was conducted on 64 Slice MDCT PHILIPS Brilliance. Bulk of our patients was of road traffic accidents and routine CT scan study revealed these physiological calcifications and did not possess any morphological abnormality. Results: 852 patients of which 503 male and 349 female were studied and overall 1429 separate calcified areas were identified due to co-existent calcifications in most of the patients. The incidence of calcification was in pineal gland (62%), choroid plexus (53%), dura mater (26%), basal ganglia (2.8%), dentate nucleus (1.4%) and Habenular nuclei (6%). Incidence is more in male than in female. Conclusion: Physiological calcifications in some of the intracranial structures are not a very uncommon finding and it should not be confused with a pathological one.

Organization of tight junctions in the choroid plexus epithelium

1978 ◽  
Vol 36 (2) ◽  
pp. 336-337
Author(s):  
B. Van Deurs ◽  
J. K. Koehler
Keyword(s):  
Choroid Plexus ◽  
Present Report ◽  
Freeze Fracture ◽  
Barrier Properties ◽  
Cell Junctions ◽  
Structural Basis ◽  
Apical Surface ◽  
Choroid Plexus Epithelium ◽  
Solid Nitrogen ◽  
Special Composition

The choroid plexus epithelium constitutes a blood-cerebrospinal fluid (CSF) barrier, and is involved in regulation of the special composition of the CSF. The epithelium is provided with an ouabain-sensitive Na/K-pump located at the apical surface, actively pumping ions into the CSF. The choroid plexus epithelium has been described as “leaky” with a low transepithelial resistance, and a passive transepithelial flux following a paracellular route (intercellular spaces and cell junctions) also takes place. The present report describes the structural basis for these “barrier” properties of the choroid plexus epithelium as revealed by freeze fracture.Choroid plexus from the lateral, third and fourth ventricles of rats were used. The tissue was fixed in glutaraldehyde and stored in 30% glycerol. Freezing was performed either in liquid nitrogen-cooled Freon 22, or directly in a mixture of liquid and solid nitrogen prepared in a special vacuum chamber. The latter method was always used, and considered necessary, when preparations of complementary (double) replicas were made.

MR Findings of Choroid Plexus Papilloma: Case Report

1994 ◽  
Vol 30 (4) ◽  
pp. 643
Author(s):  
Joo Hyeong Oh ◽  
Tae Hoon Kim ◽  
Woo Suk Choi
Keyword(s):  
Case Report ◽  
Choroid Plexus ◽  
Choroid Plexus Papilloma ◽  
Plexus Papilloma

MR Imaging of Intracranial Calcification; Experimental and Clinical Studies

1995 ◽  
Vol 32 (5) ◽  
pp. 703
Author(s):  
Heoung Keun Kang ◽  
Jeong Jin Seo ◽  
Yun Hyeon Kim ◽  
Jong Hoon Yoon ◽  
Byung Jin Kim ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Clinical Studies ◽  
Intracranial Calcification

Development and evaluation of a patient-specific surgical simulator for endoscopic colloid cyst resection

2020 ◽  
Vol 133 (2) ◽  
pp. 521-529 ◽  
Author(s):  
Vivek P. Bodani ◽  
Gerben E. Breimer ◽  
Faizal A. Haji ◽  
Thomas Looi ◽  
James M. Drake
Keyword(s):  
Choroid Plexus ◽  
Computer Aided Design ◽  
Third Ventricle ◽  
Colloid Cyst ◽  
Comfort Level ◽  
Complex Case ◽  
Patient Specific ◽  
Surgical Simulator ◽  
Perceived Realism ◽  
Noncontrast Ct

OBJECTIVEEndoscopic 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.METHODSThe simulator was developed based on the neuroimaging (axial noncontrast CT and T1-weighted gadolinium-enhanced MRI) of an 8-year-old patient with a colloid cyst and hydrocephalus. Image segmentation, computer-aided design, rapid prototyping (3D printing), and silicone molding techniques were used to produce models of the skull, brain, ventricles, and colloid cyst. The cyst was filled with a viscous fluid and secured to the roof of the third ventricle. The choroid plexus and intraventricular veins were also included. Twenty-four neurosurgical trainees performed a simulated colloid cyst resection using a 30° angled endoscope, neuroendoscopic instruments, and image guidance. Using a 19-item feedback survey (5-point Likert scales), participants evaluated the simulator across 5 domains: anatomy, instrument handling, procedural content, perceived realism, and confidence and comfort level.RESULTSParticipants found the simulator’s anatomy to be highly realistic (mean 4.34 ± 0.63 [SD]) and appreciated the use of actual instruments (mean 4.38 ± 0.58). The procedural content was also rated highly (mean 4.28 ± 0.77); however, the perceived realism was rated slightly lower (mean 4.08 ± 0.63). Participants reported greater confidence in their ability to perform an endoscopic colloid cyst resection after using the simulator (mean 4.45 ± 0.68). Twenty-three participants (95.8%) indicated that they would use the simulator for additional training. Recommendations were made to develop complex case scenarios for experienced trainees (normal-sized ventricles, choroid plexus adherent to cyst wall, bleeding scenarios) and incorporate advanced instrumentation such as side-cutting aspiration devices.CONCLUSIONSA patient-specific synthetic surgical simulator for training residents and fellows in endoscopic colloid cyst resection was successfully developed. The simulator’s anatomy, instrument handling, and procedural content were found to be realistic. The simulator may serve as a valuable educational tool to learn the critical steps of endoscopic colloid cyst resection, develop a detailed understanding of intraventricular anatomy, and gain proficiency with bimanual neuroendoscopic techniques.

Sign in / Sign up

Export Citation Format

Share Document