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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
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...
Appendicitis01:19

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
Inflammatory Bowel Disease I: Introduction01:26

Inflammatory Bowel Disease I: Introduction

Inflammatory bowel disease is a group of chronic disorders marked by recurrent inflammation of the gastrointestinal tract due to an abnormal immune response against gut microflora. This leads to tissue damage. The two main forms are Crohn’s disease and ulcerative colitis.Crohn’s DiseaseCrohn’s disease is a relapsing inflammatory disorder that can affect any part of the GI tract, from the mouth to the anus. It involves all layers of the bowel wall (transmural) and shows “skip lesions” in which...
Brain Abscess l: Introduction01:26

Brain Abscess l: Introduction

A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...

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Updated: Jun 17, 2026

Posterior Approach for Debridement of the Psoas Abscess
06:02

Posterior Approach for Debridement of the Psoas Abscess

Published on: March 2, 2020

Pilonidal disease.

Franklin P Bendewald1, Robert R Cima

  • 1Department of General Surgery, Division of Colon and Rectal Surgery, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.

Clinics in Colon and Rectal Surgery
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

Pilonidal disease, a common anorectal issue in young adults, often leads to treatment failure and recurrence. Understanding its causes and surgical options is key for successful management and reducing patient morbidity.

Keywords:
Pilonidalpathogenesisreviewtreatment

Related Experiment Videos

Last Updated: Jun 17, 2026

Posterior Approach for Debridement of the Psoas Abscess
06:02

Posterior Approach for Debridement of the Psoas Abscess

Published on: March 2, 2020

Area of Science:

  • Anorectal surgery
  • Surgical pathology

Background:

  • Pilonidal disease is a prevalent anorectal condition affecting young individuals.
  • High rates of treatment failure and recurrence contribute to significant morbidity.
  • Effective management requires understanding disease pathogenesis and surgical outcomes.

Purpose of the Study:

  • To review the pathogenesis of pilonidal disease.
  • To discuss treatment options for acute abscesses, sinus tracts, and chronic/recurrent disease.

Main Methods:

  • Literature review of pilonidal disease pathogenesis.
  • Analysis of surgical treatment strategies for various presentations.
  • Discussion of advantages and disadvantages of different operative approaches.

Main Results:

  • Pilonidal disease pathogenesis involves complex factors.
  • Various surgical techniques exist, each with specific indications.
  • Recurrence rates vary significantly based on the chosen procedure.

Conclusions:

  • Successful pilonidal disease management hinges on a thorough understanding of its pathogenesis.
  • Selecting the appropriate surgical intervention based on disease presentation is crucial.
  • Minimizing recurrence and morbidity requires careful consideration of surgical options.