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Related Concept Videos

Colloids and Suspensions01:17

Colloids and Suspensions

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
Vesicular Tubular Clusters01:45

Vesicular Tubular Clusters

After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi.
With the help of motor proteins such...
Diverticular Disease of the Colon01:27

Diverticular Disease of the Colon

Diverticular disease involves the formation of diverticula—small sac-like outpouchings of the colonic wall—and their complications. It most commonly affects the sigmoid colon due to higher intraluminal pressure and structural vulnerability. It results from structural weakness and increased pressure in the colon, producing pseudodiverticula that may remain silent or progress to inflammation and serious complications.Structure of DiverticulaIn diverticulosis, these outpouchings are...
Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
Intralumenal Vesicles and Multivesicular Bodies01:38

Intralumenal Vesicles and Multivesicular Bodies

Intraluminal vesicles (ILVs) are small vesicles 50-80 nm in diameter formed during the maturation of early endosomes. A specialized endosome containing numerous ILVs is called a multivesicular body (MVB). ILVs contain internalized molecules such as antigens, nucleic acids, proteins, and metabolites. Some of these molecules are released from the MVBs inside exosomes and are transported to other cells. Other MVBs contain molecules that are retained in the ILVs and are later degraded within the...

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Related Experiment Video

Updated: May 25, 2026

Endoscopic Approach for Colloid Cyst Resection
02:30

Endoscopic Approach for Colloid Cyst Resection

Published on: May 23, 2025

Unusual "double density" colloid cysts.

Nader S Dahdaleh1, Brian J Dlouhy, Patricia A Kirby

  • 1Department of Neurosurgery, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA. nader-dahdaleh@uiowa.edu

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|January 18, 2012
PubMed
Summary
This summary is machine-generated.

Paired colloid cysts in the third and lateral ventricles are rare. This case highlights successful purely endoscopic resection, avoiding craniotomy for these intraventricular tumors.

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Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts
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Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts

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Last Updated: May 25, 2026

Endoscopic Approach for Colloid Cyst Resection
02:30

Endoscopic Approach for Colloid Cyst Resection

Published on: May 23, 2025

Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts
09:55

Generation and Quantitative Characterization of Functional and Polarized Biliary Epithelial Cysts

Published on: May 16, 2020

Area of Science:

  • Neurosurgery
  • Neurology
  • Oncology

Background:

  • Colloid cysts are common third ventricular tumors.
  • Surgical approach depends on preoperative diagnosis.
  • Multiple colloid cysts are exceptionally rare.

Observation:

  • A patient presented with paired colloid cysts in the third and lateral ventricles.
  • The cysts exhibited distinct radiographic characteristics.
  • Both lesions were successfully resected via a purely endoscopic approach.

Findings:

  • This is the third reported case of dual colloid cysts.
  • It is the second report of simultaneous lateral and third ventricular cysts.
  • This represents the first case managed solely with endoscopic techniques, avoiding craniotomy.

Implications:

  • Emphasizes the need for broad differentials in intraventricular lesions.
  • Demonstrates the efficacy of a purely endoscopic transcortical approach for colloid cyst resection.
  • Highlights advancements in minimally invasive neurosurgical techniques for complex intraventricular tumors.