Last reviewed: November 2017
Last updated: March  2017

Summary

Definition

History and exam

Key diagnostic factors

  • rectal bleeding
  • perianal pain/discomfort

Other diagnostic factors

  • anal pruritus
  • tender palpable perianal lesion
  • anal mass

Risk factors

  • age between 45 and 65 years
  • constipation
  • pregnancy or space-occupying pelvic lesion
  • hepatic insufficiency
  • ascites

Diagnostic investigations

1st investigations to order

  • anoscopic exam
  • colonoscopy/flexible sigmoidoscopy
  • CBC
  • stool for occult heme
Full details

Treatment algorithm

Contributors

Authors VIEW ALL

Senior Lecturer in Colorectal Surgery

Academic Surgical Unit

National Centre for Bowel Research & Surgical Innovation (NCBRSI)

Centre for Digestive Diseases

Blizard Institute

Barts and The London School of Medicine & Dentistry

Queen Mary University of London

London

UK

Disclosures

MAT held a clinical research training fellowship (2000-2003) and has obtained research grants (2000-2006) from Ethicon Endo-Surgery (UK and Europe).

Professor of Surgery

Ninewells Hospital & Medical School

University of Dundee

Dundee

UK

Disclosures

RJCS previously obtained a research grant from Ethicon Endo-Surgery (UK).

Dr Mohamed A. Thaha and Professor Robert J.C. Steele would like to gratefully acknowledge Dr Kurt G. Davis, the previous contributor to this monograph. KGD declares that he has no competing interests.

Peer reviewers VIEW ALL

Honorary Clinical Research Fellow

Division of Surgery

Oncology

Reproductive Biology and Anaesthetics

Imperial College

St Mary's Hospital

London

UK

Disclosures

GR declares that he has no competing interests.

Clinical Research Fellow

Department of Biosurgery and Surgical Technology

Imperial College

St Mary's Hospital

London

UK

Disclosures

AVR declares that he has no competing interests.

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