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• Anal Fissure
• Anal Fistula
• Anal Sphincter Reconstruction
• Colon Cancer

  Colorectal Cancer: Introduction

  Colorectal cancer is cancer that starts in either your colon or your rectum. These make up the lower part of your digestive tract. In most cases cancer does not start in both the colon and rectum. But both types of cancer have a lot in common, so they are often called colorectal cancer.
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• Colon Polyps
• Colon Tumor (Benign)
• Colorectal (colon, rectum and anus)
• Crohn's Disease

  Crohn's Disease

  Crohn's disease occurs when there is redness and swelling (inflammation) and sores along your digestive tract. It is part of a group of diseases known as inflammatory bowel disease or IBD.
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• Diverticulitis

  Diverticular Disease

  Diverticular disease is an infection in the tiny pouches that some people get in their colon. The pouches are called diverticula. These pouches bulge out through weak spots in your colon. The pouches can become inflamed (red, swollen) or infected.
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• Familial Adenomatous Polyposis

  Hereditary Colorectal Cancer Syndromes: Familial Adenomatous Polyposis (FAP)

  Familial adenomatous polyposis (FAP) is also known as familial polyposis coli, adenomatous polyposis coli, or Gardner syndrome. FAP is a syndrome characterized by a large number of benign polyps in the colon and rectum. Without treatment, a person with FAP has a nearly 100% risk of colorectal cancer.
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• Gastrointestinal Surgery
• Genetics
• Hemorrhoid External

  Hemorrhoids

  Hemorrhoids are when the veins or blood vessels in and around your anus and lower rectum become swollen and irritated. This happens when there is extra pressure on these veins.
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• Hemorrhoid Internal

  Hemorrhoids

  Hemorrhoids are when the veins or blood vessels in and around your anus and lower rectum become swollen and irritated. This happens when there is extra pressure on these veins.
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• Hereditary Non-polyposis Colon Cancer

  Other Colorectal Cancer Syndromes

  Several rare syndromes raise the risk for colorectal cancer. These disorders include Turcot syndrome, Peutz-Jeghers syndrome, juvenile polyposis coli, and MYH-associated polyposis.
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• Ileoanal Pull Through
• Ilial-Pouch Anal Anastamosis
• Incontinence

  Urinary Incontinence

  Urinary incontinence (UI) is the loss of urine control. You may not being able to hold your urine until you can reach a restroom. It may be a short-term problem caused by another health issue. Or it may be a long-term problem that you’ll have to manage.
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• Inflammatory Bowel Disease

  Irritable Bowel Syndrome (IBS)

  Irritable bowel syndrome (IBS) is a disorder that affects your large intestine or colon. When you have IBS your colon looks normal. But it does not work the way it should.
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• Laparoscopic Surgery
• Lynch Syndrome
• Minimally Invasive Surgery

  Methods of Surgery

  An "open" surgery means cutting the skin and tissues so that the surgeon has a full view of the structures or organs involved. Minimally invasive surgery is a relatively new approach that allows the patient to recuperate faster with less pain. Not all conditions are suitable for this type of surgery.
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• Pelvic Floor Disorders
• Proctocolectomy (Ileal pull through)

  Ulcerative Colitis

  Ulcerative colitis is part of a group of diseases called inflammatory bowel disease (IBD). It is when the lining of your large intestine (the colon or large bowel) and your rectum become red and swollen or inflamed. In most cases the inflammation begins in your rectum and lower intestine and moves up to the whole colon.
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• Rectal Cancer

  Anal Cancer: Diagnosis

  To determine if you might have anal cancer, you will need certain exams and tests to be sure. Diagnosing anal cancer starts with your healthcare provider asking you questions. You will be asked about your health history, your symptoms, risk factors, and family history of disease. He or she will also do a physical exam. This includes a digital rectal exam (DRE). During a DRE, your healthcare provider puts a gloved, lubricated finger into your rectum. He or she checks for hard or lumpy areas.
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• Rectal Prolapse
• Rectal Tumor (Benign)
• Rectovaginal Fistula
• Ulcerative Colitis

  Ulcerative Colitis

  Ulcerative colitis is part of a group of diseases called inflammatory bowel disease (IBD). It is when the lining of your large intestine (the colon or large bowel) and your rectum become red and swollen or inflamed. In most cases the inflammation begins in your rectum and lower intestine and moves up to the whole colon.
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• Colorectal Cancer
• Inherited Gastrointestinal Cancer Syndromes (Familial Adenomatous Polyposis, Hereditary Non-polyposis Colon Cancer)
• Early-onset Colorectal Cancer

1. Dharmarajan S, Schuai D, Fajardo E, Birnbaum E, Hunt S, Mutch M, Fleshman J, Lin A. Neoadjuvant Therapy for Stage III Rectal Cancer Negates the Effect of Enlarged Lateral Pelvic Lymph Nodes. J Gastrointest Surg. Epub 2011 May 2.
2. Lin AY, Wong WD, Temple L, Shia J, Minsky B, Guillem J, Paty P, Weiser M. Predictive Clinicopathologic Factors for Limited Response of T3 Rectal Cancer to Combined Modality Therapy. Int J Colorectal Dis. 23(3):243-9. Epub 2007 Nov 29.
3. Lin AY, Weiser M, Klimstra D, Tang L, Al-Ahmadie H, Paty P, Wong WD, Gerald W, Shia J. Differential Expression of Alpha-Methylacyl-coA Racemase in Colorectal Carcinoma Bears Clinical and Pathological Significance. Hum Pathol 38(6):850-6;2007. Epub 2007 April 18.
4. Lin AY, Szmydynger-Chodobska J, Rahman MP, Mayer B, Monfils PR, Johanson CE, Lim YP, Corsetti S,Chodobski A. Immunohistochemical Localization of Nitric Oxide Synthase in Rat Choroid Artery Stromal Vessels, Choroid Plexus Epithelial Cells. Cell and Tissue Research 285:411-8; 1996.
5. Szmydynger-Chodobska J, Monfils PR, Lin AY, Rahman MP, Johanson CE, Chodobski A. NADPHdiaphorase Histochemistry of Rat Choroid Plexus Blood Vessels and Epithelium. Neuroscience Letters 208:179-82; 1996.

Books

1. Lin AY, Schrag D, Wong WD. Adjuvant and Neoadjuvant Therapy for Colorectal Carcinoma. In: Bland KI, Büchler MW, Csendes A, Garden OJ, Sarr MG, Wong J (eds). General Surgery: Principles and International Practice. Guildford, UK: Springer-Verlag London Ltd. 2008.
2. Nogueras J, Lin A. Fecal incontinence: Surgical Management. In: Sands L, Sands D. Ambulatory Colorectal Surgery, Taylor & Francis, Inc., December 2008.

Medical Education