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- •Foreword for Benign Anorectal Disorders
- •Preface 1
- •Preface 2
- •1.5 Nerve Supply of Anal Canal and Rectum
- •1.6 Anorectal Spaces
- •Bibliography
- •2: Physiology of Defecation
- •2.1 Normal Defecation
- •2.1.2 Reservoir
- •Contents
- •1: Surgical Anatomy of Anal Canal and Rectum
- •1.1 Rectum
- •1.1.1 Relations
- •1.2 Anal Canal
- •1.2.1 Inner Lining
- •Bibliography
- •3: Hemorrhoids
- •3.1 Introduction
- •3.3.1 Vascular Hemorrhoids
- •3.3.2 Mucosal Hemorrhoids
- •3.3.3 Internal Hemorrhoids
- •3.3.4 External Hemorrhoids
- •3.4 Symptoms
- •3.4.1 Bleeding
- •3.4.2 Protrusion
- •3.4.3 Pain
- •3.4.4 Discharge and Irritation
- •3.4.5 Anemia
- •3.4.6 Painful Mass in the Anal Region
- •3.5 Clinical Examination
- •3.5.1 Digital Rectal Examination
- •3.5.2 Endoscopic Examination
- •3.6 Treatment
- •3.6.2 Medical Treatment
- •3.6.3.1 Injection Sclerotherapy
- •3.6.3.2 Rubber Band Ligation
- •3.6.3.3 Cryotherapy
- •3.6.3.4 Infrared Coagulation (IRC)
- •3.6.3.4.1 Complications
- •3.6.3.6 Direct Current Therapy
- •3.6.4 Surgical Treatment
- •3.6.4.2 Closed Hemorrhoidectomy (Ferguson)
- •3.6.4.3 White Head (Submucosal) Hemorrhoidectomy
- •3.6.4.4 Laser Hemorrhoidectomy
- •3.6.4.5 LigaSure Hemorrhoidectomy
- •3.6.4.6 Hemorrhoidectomy by Ultrasonic Scalpel (HUS)
- •3.6.4.6.1 Mechanism
- •3.6.4.6.2 Coaptive Coagulation
- •3.6.4.6.3 Cavitation Effect
- •3.6.4.6.4 Technique
- •3.6.4.8 Doppler-Guided Hemorrhoidal Artery Ligation (DGHAL)
- •3.6.4.8.1 Procedure
- •3.6.4.8.2 Postoperative Complications
- •3.6.4.8.3 Results
- •3.7.1 Pain
- •3.7.2 Urinary Retention
- •3.7.3 Postoperative Bleeding
- •3.7.4 Wound Infection
- •3.7.5 Fecal Impaction
- •3.7.6 Stenosis
- •3.7.7 Recurrence
- •3.7.8 Incontinence
- •3.7.9 Other Late Complications
- •3.8 Special Situations
- •3.8.1 Thrombosed Hemorrhoids
- •3.8.2 Strangulated Hemorrhoids
- •3.8.3 Anorectal Varices and Portal Hypertension
- •3.8.4 Pregnancy
- •3.8.5 Crohn’s Disease and Ulcerative Colitis
- •3.8.6 Immunocompromised Patients
- •3.8.7 Coagulation Disorders
- •3.8.8 Fissure
- •3.8.9 Sepsis
- •Conclusion
- •Bibliography
- •4: Anal Fissure
- •4.1 Introduction
- •4.2 Epidemiology
- •4.4 Pathology
- •4.5 Etiopathogenesis
- •4.5.1 Microtrauma to Anal Canal Mucosa
- •4.5.2 Anal Sphincteric Spasm
- •4.5.3 Anal Mucosal Ischemia
- •4.5.4 Trauma During Childbirth
- •4.5.5 Other Causes of Secondary Anal Fissure
- •4.6 Clinical Features
- •4.7 Differential Diagnosis
- •4.8 Management
- •4.8.2.1 Medical Management
- •4.8.2.2.3 Fissurectomy
- •4.8.2.2.4 Anal Dilatation or Stretch (Lord’s Procedure)
- •4.8.2.2.5 V-Y Mucosal Advancement Flap
- •4.8.2.2.6 Internal Anal Sphincterolysis
- •4.8.2.2.7 Direct Current Treatment
- •4.8.3 Recurrence
- •4.8.4 Special Situations
- •4.9 Prevention
- •Conclusion
- •Bibliography
- •5: Perianal Sepsis and Fistula
- •5.1 Introduction
- •5.2 Anatomy
- •5.3 Epidemiology and Etiology
- •5.4.1 Anorectal Abscess
- •5.4.2 Anal Fistula
- •5.5 Diagnosis
- •5.5.1 Anorectal Abscess
- •4.8.2.1.1 Chemical Sphincterotomy
- •4.8.2.1.2 Topical Nitroglycerine
- •4.8.2.1.3 Topical Diltiazem (2 %)
- •4.8.2.1.4 Topical Nifedipine (0.3 %)
- •4.8.2.1.5 Topical Bethanechol
- •4.8.2.1.6 Botulinum Toxin
- •4.8.2.1.8 Minoxidil
- •4.8.2.2 Surgical Management
- •4.8.2.2.1 Internal Sphincterotomy
- •4.8.2.2.2 Fissurotomy and Posterior Sphincterotomy
- •5.5.2 Anal Fistulas
- •5.5.3 Special Studies
- •5.5.3.1 Sigmoidoscopy and Colonoscopy
- •5.5.3.2 Fistulography
- •5.5.3.3 Endoanal Ultrasonography
- •5.5.3.4 Computed Tomography (CT) Scan
- •5.5.3.5 Magnetic Resonance Imaging (MRI)
- •5.5.3.6 Anorectal Manometry
- •5.5.3.7 Fistuloscopy
- •5.6 Treatment
- •5.6.1 Anorectal Abscess
- •5.6.2 Horseshoe Abscess
- •5.6.3 Abscess and Primary Fistulotomy
- •5.6.4 Fistula-in-Ano
- •5.6.4.1 Advancement Flap
- •5.6.4.2 Fibrin Glue
- •5.6.4.3 Seton
- •5.6.4.4 Anal Fistula Plug
- •5.6.4.5 Ligation of Intersphincteric Fistula Tract (LIFT)
- •5.6.4.6 Video-Assisted Anal Fistula Treatment (VAAFT)
- •5.6.4.7 Autologous Adipose-Derived Stem Cell
- •5.6.4.8 Fistulectomy and Fistulotomy
- •5.6.4.9 Fistulectomy with Primary Sphincter Reconstruction
- •5.6.5 Intersphincteric Fistula-in-Ano
- •Conclusion
- •Bibliography
- •6: Pilonidal Disease
- •6.1 Introduction
- •6.2 Etiology
- •6.2.1 Theory of Acquired Origin
- •6.3 Clinical Features
- •6.4 Differential Diagnosis
- •6.5 Investigations
- •6.6 Treatment
- •6.6.1 Conservative Treatment
- •6.6.2 Operative Procedures
- •6.6.2.1 Simple Incision of Abscess
- •6.6.2.3 Excision With or Without Wound Closure
- •6.6.2.4 Bascom I Technique
- •6.6.2.6 Vacuum-Assisted Closure (VAC)
- •6.7 Prevention of Recurrence
- •6.8 Summary
- •Bibliography
- •7: Rectovaginal Fistulas
- •7.1 Introduction
- •7.2 Etiology
- •7.2.1 Congenital
- •7.2.2 Acquired
- •7.2.2.1 Child Birth
- •7.2.2.2 Diverticular Disease
- •7.2.2.4 Malignancies
- •7.2.2.5 Radiation Therapy
- •7.2.2.6 Operative Trauma
- •7.3.1 Size
- •7.3.2 Location and Etiology
- •7.3.3 Anatomy
- •7.3.3.1 Pelvic Enterovaginal Fistula
- •7.3.3.2 High Rectovaginal Fistula
- •7.3.3.3 Midzone Rectovaginal Fistula
- •7.3.3.4 Low Rectovaginal Fistula
- •7.3.3.5 Suprasphincteric and Transsphincteric Anovaginal Fistula
- •7.4 Clinical Presentation
- •7.5 Diagnosis
- •7.5.2 Anorectal Manometry
- •7.5.3 Neurophysiologic Testing
- •7.5.4 Vaginography
- •7.5.5 Barium Enema
- •7.5.6 Computed Tomography (CT) Scan
- •7.5.7 Endoanal Ultrasonography (EAUS)
- •7.5.8 Magnetic Resonance Imaging (MRI)
- •7.5.9 Endoanal MRI
- •7.6 Management
- •7.6.1 Medical Management
- •7.6.2 Surgical Treatment
- •7.6.2.1 Transanal Approaches
- •7.6.2.1.1 Mucosal Advancement Flap Repair
- •7.6.2.1.2 Transanal Sleeve Advancement Flap (TSAF)
- •7.6.2.2 Transvaginal Approaches
- •7.6.2.2.1 Transvaginal Inversion Repair
- •7.6.2.3 Transperineal Approaches
- •7.6.2.3.1 Simple Fistulotomy
- •7.6.2.3.2 Fistulotomy with Perineoproctotomy with Layered Closure
- •7.6.2.3.3 Perineal Repair with Levatoroplasty
- •7.6.2.4 Transsphincteric Approach
- •7.6.2.5 Repair with Biological Agents
- •7.6.2.6 Tissue Transfer Procedures
- •7.6.2.6.1 Gracilis Transfer
- •7.6.2.6.2 Martius Flap Repair
- •7.6.2.7 Transabdominal Approaches
- •7.6.2.8 Fistula Division
- •7.6.2.8.1 Coloanal Sleeve Reconstruction
- •7.6.2.8.2 Bricker Patch
- •7.6.2.8.3 Stoma
- •7.6.2.9 Laparoscopic Repair
- •7.7 Complications
- •7.7.1 Complications of Local Repairs
- •7.7.1.1 Bleeding
- •7.7.1.2 Infection
- •7.7.1.3 Urinary Retention
- •7.7.1.4 Recurrence
- •7.7.2 Complications of Abdominal Repairs
- •7.7.2.1 Bleeding
- •7.7.2.2 Infection
- •7.7.2.3 Enterocutaneous Fistula
- •7.7.2.4 Recurrence
- •Bibliography
- •8: Anorectal Injuries
- •8.1 Introduction
- •8.2 Etiology
- •8.2.1 Trauma
- •8.2.1.1 Blunt Anorectal Trauma
- •8.2.1.2 Penetrating Anorectal Trauma
- •8.2.1.3 Blast Injury
- •8.2.2 Anorectal Foreign Bodies
- •8.2.3 Obstetric Injury
- •8.2.4 Iatrogenic Injuries
- •8.2.5 Sexual Assault
- •8.3 Diagnosis of Anorectal Trauma
- •8.3.1 Unstable Patient
- •8.3.2 Stable Patient
- •8.4 Grade of Injury
- •8.5 Surgical Strategy
- •8.5.1 Technical Points in Surgery
- •8.5.2 Anorectal Foreign Bodies
- •8.5.4 Iatrogenic Anorectal Injuries
- •8.5.5 Closure of Colostomy
- •8.6 Outcome
- •8.6.1 Complications
- •8.6.2 Mortality
- •Conclusion
- •Bibliography
- •9: Anal Incontinence
- •9.1 Introduction
- •9.2 Anatomy of the Anal Sphincter Complex
- •9.3 Causes of Incontinence
- •9.3.1 Trauma
- •9.3.2 Neurological Conditions
- •9.3.3 Diarrheal States
- •9.3.4 Congenital Disease
- •9.3.5 Pelvic Floor Denervation
- •9.3.6 Aging
- •9.3.7 Miscellaneous
- •9.4 Clinical Evaluation
- •9.4.1 Medical History
- •9.4.2 Examination
- •9.4.3 Investigations
- •9.4.3.1 Manometry
- •9.4.3.2 Measurement of Sphincter Strength
- •9.4.3.3 Anal Sphincter Electromyography (EMG)
- •9.4.3.4 Anal Ultrasound
- •9.4.3.5 Balloon Proctography and Defecography
- •9.4.3.7 Endoscopy
- •9.4.3.8 Pudendal Nerve Motor Latency (PNML)
- •9.5.1 Conservative Treatment
- •9.5.1.1 Diet
- •9.5.1.2 Pharmacological Treatment
- •9.5.1.3 Bowel Management
- •9.5.1.4 Physical Treatment
- •9.5.1.5 Biofeedback
- •9.5.1.6 Faradic Stimulation
- •9.5.2 Surgical Treatment
- •9.5.2.1 Thiersch Operation
- •9.5.2.2 Repair of Obstetrical Injuries
- •9.5.2.4 Restoration of the Anorectal Angle
- •9.5.2.5 Muscular Graft
- •9.5.2.5.1 Gluteoplasty
- •9.5.2.5.2 Graciloplasty
- •9.5.2.5.2.1 Adynamic Graciloplasty
- •9.5.2.5.2.2 Dynamic Graciloplasty
- •9.5.2.6 Sacral Nerve Stimulation (SNS)
- •9.5.2.8 The FENIX™ Continence Restoration System
- •9.5.2.9 Miscellaneous Procedures
- •9.5.2.9.1 Smooth Muscle Plasty
- •9.5.2.9.2 Reinforcement of the Occlusion Mechanism
- •9.5.2.9.3 Secca Procedure
- •9.5.2.9.4 Injectable Agents
- •9.5.2.9.5 Colostomy
- •Bibliography
- •10: Complete Rectal Prolapse in Adults
- •10.1 Introduction
- •10.2 Etiology
- •10.3 Clinical Features
- •10.4 Diagnosis
- •10.5 Treatment
- •10.5.1 Abdominal Procedure
- •10.5.1.1 Suture Rectopexy
- •10.5.1.2 Prosthetic or Mesh Rectopexy
- •10.5.1.3 Posterior Mesh Rectopexy
- •10.5.1.4 Ripstein Procedure (Anterior Sling Rectopexy)
- •10.5.1.5 Rectopexy with Resection
- •10.5.1.6 Ventral Rectopexy
- •10.5.1.7 Laparoscopic Rectopexy
- •10.5.2 Perineal Procedure
- •10.5.2.1 Thiersch Procedure
- •10.5.2.2 Delorme Operation
- •10.5.2.3 Perineal Rectosigmoidectomy (Altemeier’s Procedure)
- •10.6 Comparison of Different Procedures and Approaches
- •10.7 Choice of Operation
- •10.8 Recurrent Prolapse
- •10.9 Summary
- •Bibliography
- •11: Pelvic Floor Dysfunction
- •11.1 Introduction
- •11.2 Anatomical Footprint for Pelvic Floor Surgical Navigation
- •11.3 Clinical Features
- •11.3.1 Urinary Continence
- •11.3.2 Bladder Storage/Sensation Symptoms
- •11.3.3 Voiding/Micturition Symptoms
- •11.3.4 Pelvic Organ Prolapse Symptoms
- •11.3.5 Sexual Dysfunction Symptoms
- •11.3.6 Anorectal Dysfunction Symptoms
- •11.3.7 Pelvic Pain Syndrome/Pudendal Neuralgia (Nantes Criteria)
- •11.3.8 Erectile Tissue Denervation (S2–S4) Symptoms
- •11.4 Evaluation for Pelvic Floor Dysfunction
- •11.4.1 Examination for Pelvic Organ Prolapse
- •11.4.2 Evaluation for Anorectal Dysfunction
- •11.4.3 Evaluation for Anorectal Incontinence
- •11.4.4 Evaluation for Functional Defecation Syndromes
- •11.4.4.4 Rule Out Slow-Transit Constipation
- •11.4.4.5 Imaging for Pelvic Floor Dysfunction with ODS
- •11.4.4.5.1 Dynamic Fluoroscopic Defecography
- •11.4.4.5.2 Anal Endosonography
- •11.4.4.5.3 Dynamic MRI Defecography
- •11.5 Causes of Anorectal Outlet Obstruction
- •11.5.1 Paradoxical Puborectalis Syndrome (PPR) or Anismus
- •11.5.2 Rectal Intussusception
- •11.5.3 Rectocele
- •11.5.4 Idiopathic Megarectum
- •11.6 Management of Pelvic Floor Dysfunction
- •11.6.1 Surgery for ODS: Stapled Transanal Resection Rectopexy (STARR)
- •11.6.1.1 Operative Procedure
- •11.6.2 Pelvic Organ Prolapse Surgery with STARR (POPSTARR)
- •11.7 Descending Perineum Syndrome
- •11.8 Functional Pelvic Pain Disorders
- •11.8.1 Levator Ani Syndrome
- •11.8.2 Proctalgia Fugax
- •Bibliography
- •12: Perianal Dermatology
- •12.1 Introduction
- •12.3.1 Contact Dermatitis
- •12.3.2 Danthron Contact Dermatitis
- •12.3.4 Seborrheic Dermatitis
- •12.3.5 Atopic Dermatitis
- •12.3.6 Psoriasis
- •12.3.7 Lichen Simplex Chronicus
- •12.3.9 Hidradenitis Suppurativa
- •12.3.10 Crohn’s Disease (Synonym: Regional Ileitis)
- •12.3.12.1 Anal Fissures
- •12.3.12.2 Anal Fistula
- •12.3.12.3 Pilonidal Cyst/Sinus
- •12.3.12.4 Pruritus Ani
- •12.4 Infections
- •12.4.1 Folliculitis and Furunculosis
- •12.4.2 Streptococcal Dermatitis/Perianal Cellulitis
- •12.4.3 Perianal Abscess
- •12.4.4 Ecthyma Gangrenosum
- •12.4.5 Necrotizing Infections
- •12.4.6 Common Mycoses
- •12.4.7 Thread/Pinworms
- •12.4.8 Sexually Transmitted Diseases (STDs)
- •12.4.9 Miscellaneous Infections
- •12.5 Benign Tumors
- •12.5.1 Hemorrhoids
- •12.6 Premalignant Dermatoses and Frank Malignancies
- •12.6.1 Porokeratosis
- •12.6.2 Anal Intraepithelial Neoplasia
- •12.6.3 Carcinoma of the Anus
- •12.6.5 Miscellaneous Malignancies
- •12.8 Trauma in the Perianal Area
- •Conclusion
- •References
- •13: Benign Ulcers of the Anorectum
- •13.1 Introduction
- •13.2 Etiology
- •13.3 Signs and Symptoms
- •13.3.1 Diarrhea
- •13.3.2 Pain
- •13.3.3 Hemorrhage
- •13.3.4 Discharges
- •13.3.5 Pruritis or Itching
- •13.4 Diagnosis and Investigation
- •13.4.1 Endoscopy (Macroscopic and Microscopic Appearance)
- •13.4.2 Anorectal Function Tests
- •13.4.3 Radiological Investigation
- •13.4.3.1 Defecography
- •13.4.3.2 Barium Enema
- •13.4.3.3 Transrectal Ultrasound
- •13.4.4 Differential Diagnosis
- •13.5 Special Anorectal Ulcers
- •13.5.1 Anal Fissure
- •13.5.2 Hemorrhoidal Ulcer
- •13.5.3 Varicose Ulcer
- •13.5.4 Tubercular Ulcer
- •13.5.5 Syphilitic Ulcers
- •13.5.6 Dysenteric Ulceration
- •13.5.7 AIDS-Associated Anorectal Ulcers
- •13.5.8.1 Introduction
- •13.5.8.2 Clinical Features
- •13.5.8.4 Investigations
- •13.5.8.4.1 Sigmoidoscopy
- •13.5.8.4.2 Defecography
- •13.5.8.4.3 Barium Enema
- •13.5.8.4.4 Transrectal Ultrasonography (TRUS)
- •13.5.8.4.5 Anorectal Manometry
- •13.5.8.5 Differential Diagnosis
- •13.5.8.6 Management of SRUS
- •13.5.8.6.1 Conservative Treatment
- •13.5.8.6.2 Surgery
- •13.5.9 Suppository-Related Ulcers
- •13.5.10 Nicorandil-Induced Ulcers
- •13.6 Radiation-Induced Anorectal Ulcers
- •Bibliography
- •14: Benign Strictures of Anorectum
- •14.1 Introduction
- •14.2 Diagnosis
- •14.3 Etiology
- •14.3.1 Amoebic Proctocolitis
- •14.3.2 Tuberculous Stricture
- •14.3.3 Lymphogranuloma Venereum
- •14.3.4 Actinomycosis
- •14.3.6 Ischemic Colitis
- •14.3.7 Stricture Following Bowel Anastomosis
- •14.3.8 Stricture Following Anorectal Surgery
- •14.3.9 Strictures Following Traumatic Injuries
- •14.3.10 Postradiation Stricture
- •14.3.11 Endometriosis
- •14.4 Treatment Options
- •14.4.1 Diet and Medical Treatment
- •14.4.2 Dilatations
- •14.4.3 Surgical Treatment
- •14.4.3.1 Sphincterotomy
- •14.4.3.2 Anoplasty (Stricturoplasty)
- •14.4.3.3 Surgery for Rectal Strictures
- •14.4.3.4 Colostomy
- •14.5 Summary
- •Bibliography
- •15: Benign Tumors of the Anorectum
- •15.1 Introduction
- •15.2 Benign Tumors of Epithelial Origin
- •15.2.2 Keratoacanthoma
- •15.2.3.1 Etiopathogenesis
- •15.2.3.2 Epidemiological Facts
- •15.2.3.4 Investigations
- •15.2.3.5 Treatment
- •15.2.4 Preventive Measures
- •15.2.5.1 Serrated Polyps and Adenoma
- •15.2.6 Nonneoplastic Adenomas
- •15.2.6.1 Hyperplastic Polyp
- •15.2.6.3 Hamartomatous Polyps, Juvenile Polyp, and Retention Polyp
- •15.2.6.4 Lymphoid Hyperplasia and Lymphoid Polyp
- •15.3 Benign Mesenchymal Tumors
- •15.3.1 Lipoma
- •15.3.2 Fibroma
- •15.3.4 Leiomyoma
- •15.3.7 Hemangioma
- •15.3.8 Lymphangioma
- •15.4 Benign Exogenous, Extrinsic, and Miscellaneous Tumors
- •15.4.1 Barium Granuloma
- •15.4.2 Endometriosis
- •15.4.4 Sarcoidosis
- •15.4.5 Tuberculosis
- •Conclusion
- •Bibliography

Nisar Ahmad Chowdri
Fazl Q. Parray
Editors
Benign Anorectal
Disorders
A Guide to Diagnosis
and Management
123

Benign Anorectal Disorders


Nisar Ahmad Chowdri • Fazl Q. Parray
Editors
Benign Anorectal
Disorders
A Guide to Diagnosis
and Management

Editors
Nisar Ahmad Chowdri
Colorectal surgery
Sher-i-Kashmir Inst of Medical Sciences
Srinagar
Jammu and Kashmir
India
Fazl Q. Parray
Colorectal Surgery
Sher-i-Kashmir Inst of Medical Sciences
Srinagar
Jammu and Kashmir
India
ISBN 978-81-322-2588-1 ISBN 978-81-322-2589-8 (eBook)
DOI 10.1007/978-81-322-2589-8
Library of Congress Control Number: 2015953053
Springer New Delhi Heidelberg New York Dordrecht London
© Springer India 2016
This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or
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or by similar or dissimilar methodology now known or hereafter developed.
The use of general descriptive names, registered names, trademarks, service marks, etc. in this
publication does not imply, even in the absence of a specifi c statement, that such names are
exempt from the relevant protective laws and regulations and therefore free for general use.
The publisher, the authors and the editors are safe to assume that the advice and information in
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contained herein or for any errors or omissions that may have been made.
Printed on acid-free paper
Springer (India) Pvt. Ltd. is part of Springer Science+Business Media (www.springer.com)

Foreword for Benign Anorectal Disorders
My fi rst reaction to a request from Professor Nisar Chowdri to write a foreword
for his book entitled Benign Anorectal Disorders was of sheer delight because
someone with his background and reputation was undertaking a project
necessary in institutions in India. Colorectal surgery is making such dynamic
strides that any contribution to update various techniques is laudatory.
The Benign Anorectal Disorders book has encompassed all of the anorec-
tal disorders from surgical anatomy and physiology to the common disorders
including a chapter on benign tumors of anorectum. Professor Chowdri has
solicited a galaxy of contributing authors who are recognized giants in the
fi eld of colorectal surgery across India. The various chapters, particularly the
one on hemorrhoids, anal fi ssure, and the perianal sepsis fi stula, are comprehensive with the updated material right up to the latest publications.
Unfortunately, it becomes necessary in a textbook such as this to include the
procedures that are outdated and are of historical signifi cance only. However,
an attempt has been made by the authors to separate the wheat from the chaff
and given appropriate prominence to the necessary interventions.
The book will address the needs of surgical residents, general surgeons,
and colorectal surgeons. Realizing that much of the anorectal surgery in different parts of the country is performed by general surgeons, this book will be
particularly useful for the specialists.
I am honored to present this foreword to introduce the monumental task
that Professor Chowdri from Kashmir Institute of Medical Sciences in
Srinagar has undertaken and has done it admirably.
Indru T. Khubchandani, MD, MS, FRCS, FACS, FASCRS, FICS (Hon)
Prof. Honoris Causa (Bolivia); Prof. Surgery (University of
Complutensis, Madrid)
Adjunct Professor of Surgery; Hahnemann Medical School, Philadelphia, PA
President; International Society of University Colon & Rectal Surgeons
v


Prefa ce 1
It gives me immense pleasure and satisfaction on completion of editing this
book Benign Anorectal Disorders: Approach to Diagnosis and Management , a
dream in my life. When I took this project, I was not aware of the diffi culties,
but thanks to the almighty, with whose grace I have been able to complete this
book which took me more than a year, much beyond my expectations.
Benign anorectal disorders are of great concern not only to the patient but
also pose a great challenge to surgeons. This is because of the fact that symptoms associated with anorectal diseases are not only distressing but also
alarming to the patient. Any surgical intervention in this part of the gastrointestinal tract may be associated with lifelong disabilities like incontinence.
The complex anatomy of this region makes surgery all the more diffi cult.
Though many books have been published on colorectal diseases, benign
anorectal disorders are not available in a book format. This book on benign
anorectal diseases is the fi rst of its kind in the world literature. The experienced colorectal surgeons of national and international fame from all over
India have worked hard to prepare various chapters for the book. I am highly
obliged and thankful to all for their contribution. I have tried my best to make
sure that all issues pertaining to diagnosis and management of these disorders
are addressed so that decision making is simple for the readers. All the efforts
have been made to write each and every topic up to date and interesting for
the readers.
Mr Naren Aggarwal, Executive Editor, Clinical Medicine, Springer, has
been kind enough to give me the opportunity to write this book. I am highly
indebted to him for his profi cient guidance from time to time.
Our thanks are due to Mr Javid Hussain for his experienced skills to compute this book. My family and friends have been a source of great encouragement for me, and probably without their encouragement, love, and affection,
it would have not been possible to take this project to completion.
I pray and hope that this book on benign anorectal disorders will be useful
not only for the colorectal surgeons but also for residents, postgraduate students, and surgeons in general.
Srinagar, India Nisar Ahmad Chowdri ,
MS,FAIS,FICS,FACRSI,FMAS,FACS
vii


Prefa ce 2
The quality of life and surgical results have improved in the hands of dedicated colorectal specialists in the last two decades. With the increase in scope
of this surgical subspecialty, more and more surgeons are getting attracted
toward it and trying hard for specialized training in this branch of surgery.
There is a lot of literature and text focusing on colorectal malignancies available, but it is diffi cult to fi nd a book in the market which really deals with
benign colorectal diseases in detail. Therefore, it was thought worthwhile to
publish a book on benign colorectal diseases which can be of help to all postgraduates, fellows of colorectal surgery, postdoctoral students, and all clinicians practicing colorectal surgery. We tried our level best to get the book
chapters authored by the masters in the fi eld. We are thankful to all the great
contributors who made this dream come true through their valuable contribution. We have also tried to keep the language very simple and hope that readers will fi nd this book quite interesting and helpful in taking exams and their
clinical practice. It is expected to further their knowledge and skill in the fi eld
of colorectal surgery.
Srinagar, India Fazl Q. Parray ,
MS, FICS, FACRSI, FMAS, FACS
ix
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