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Related Concept Videos

Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
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Urologic Endoscopic Procedure: Cystoscopic Examination01:28

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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...
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Endoscopic Studies II: Thoracocentesis01:26

Endoscopic Studies II: Thoracocentesis

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Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
Description
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Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

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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...
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Endoscopic Procedures V: ERCP01:26

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Endoscopic Retrograde Cholangiopancreatography (ERCP) is a diagnostic procedure that combines endoscopy and fluoroscopy to diagnose and treat conditions related to the bile ducts, pancreatic ducts, and gallbladder. This procedure is beneficial for identifying and addressing blockages, gallstones, strictures, and tumors within the biliary or pancreatic systems. ERCP is both diagnostic and therapeutic, offering the ability to visualize and treat identified problems in one session.
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
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Related Experiment Video

Updated: Oct 20, 2025

Endoscopic Approach for Colloid Cyst Resection
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Third ventricle colloid cysts: An endoscopic case series emphasizing technical variations.

Samuel Tau Zymberg1, Guilherme Salemi Riechelmann1, Marcos Devanir Silva da Costa1

  • 1Department of Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil.

Surgical Neurology International
|September 13, 2021
PubMed
Summary
This summary is machine-generated.

Endoscopic surgery for colloid cysts, focusing on aspiration and coagulation without complete capsule removal, is safe and effective. This approach avoids recurrence and serious complications, offering a viable alternative to gross total resection.

Keywords:
Capsule remnantColloid cystEndoscopic surgeryGross total resection

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Area of Science:

  • Neurosurgery
  • Minimally Invasive Procedures

Background:

  • Endoscopic surgery for colloid cysts is established as safe and effective.
  • Complete capsule resection for gross total resection is typically recommended but not always feasible.
  • This study evaluates endoscopic aspiration and coagulation without complete capsule resection for third ventricle colloid cysts.

Purpose of the Study:

  • To assess the outcomes of endoscopic colloid cyst surgery using aspiration and coagulation without complete capsule resection.
  • To discuss the rationale and safety of this modified surgical approach.
  • To compare results with traditional gross total resection methods.

Main Methods:

  • Retrospective review of 45 patients with third ventricle colloid cysts treated endoscopically between 1997 and 2018.
  • Surgical technique focused on aspiration and coagulation, with intentional non-removal of the cyst capsule in most cases.
  • Analysis of clinical presentation, surgical routes, complications, and postoperative outcomes including MRI findings.

Main Results:

  • The majority of patients (93.3%) underwent subtotal resection without capsule removal.
  • Postoperative MRI showed absence of cyst remnants in 85% of patients.
  • Mild complications occurred in 17.8% of patients, with no serious adverse events, shunt placements, or deaths.
  • Surgery was associated with significant reductions in cyst volume and ventricular size.

Conclusions:

  • Gross total resection may not be essential for all colloid cyst cases.
  • Subtotal resection without capsule removal is a safer alternative, yielding good results, particularly in resource-limited settings.
  • Leftover cyst remnants are typically asymptomatic and do not require further treatment, though follow-up is recommended.
  • Surgical planning, considering imaging and intraoperative findings, guides the choice of resection route and technique.