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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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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,...
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Inflammatory Bowel Disease V: Surgical Management01:21

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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:
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Related Experiment Video

Updated: Sep 30, 2025

Laparoscopy-endoscopy Cooperative Surgery for the Treatment of Gastric Gastrointestinal Stromal Tumors
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A Low rectal GIST.

Tara M Connelly1, Cillian Clancy2, Shaomin Hu3

  • 1Colorectal Surgery, Cleveland Clinic Main Campus Hospital, Cleveland, Ohio, USA tara_conn@hotmail.com.

BMJ Case Reports
|March 15, 2022
PubMed
Summary
This summary is machine-generated.

A rectal gastrointestinal stromal tumour (GIST) can cause stool narrowing. This rare rectal GIST required surgery after neoadjuvant therapy, highlighting its potential aggressiveness.

Keywords:
gastrointestinal surgerygastrointestinal systemmalignant disease and immunosuppressionradiology (diagnostics)

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Area of Science:

  • Gastroenterology
  • Oncology
  • Surgical Oncology

Background:

  • Gastrointestinal stromal tumours (GISTs) are rare mesenchymal neoplasms.
  • Rectal GISTs are uncommon and often present with non-specific symptoms.
  • Early diagnosis and appropriate management are crucial for GISTs.

Observation:

  • A 70-year-old male presented with a change in stool calibre and a palpable rectal mass.
  • Colonoscopy showed a submucosal bulge; CT and MRI revealed an 8 cm lower rectal mass.
  • Biopsy confirmed a rectal GIST.

Findings:

  • The rectal GIST demonstrated moderate sensitivity to neoadjuvant imatinib and radiotherapy.
  • Neoadjuvant therapy resulted in slight tumour downsizing.
  • The patient underwent abdominal perineal resection with curative intent.

Implications:

  • Rectal GISTs, though rare, should be considered in the differential diagnosis of stool calibre narrowing.
  • Aggressive behaviour is characteristic of rectal GISTs.
  • Multidisciplinary management involving oncology and surgical oncology is essential for rectal GISTs.