David Dong qi Zhang MD

Recommended Articles

• Colon Cancer

  What is colon cancer?Colon cancer is cancer of the large intestine, also known as the colon. If the last segment of the colon, the rectum, has a cancerous growth, it is known as rectal carcinoma. These two conditions are collectively referred to as colorectal cancer.Carcinoma of the colon is the...

• Different Types of Physicians Explained

  Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...

• What Are the Treatments for Anal Fissure and Which Specialist Should I Consult?

  Anal fissure is an impairment of the wall of the anus. It usually does not come with a lot of medical complications. Nonetheless, it should be treated with urgency, since it can make life very uncomfortable for you.  Anal Fissure SymptomsAnal fissure comes with a number of symptoms. Since some of...

• What is a Virtual Colonoscopy?

  Also referred to as a VC, a virtual colonoscopy is an x-ray test that detects polyps, cancer or other disorders in the colon. Colonography is the medical term for this test.How It's DoneThere is a difference between an ordinary colonoscopy and a virtual colonoscopy. The ordinary colonoscopy uses a...

• Epigastric Hernia: Get the Facts

  A hernia is a condition in which some part of an internal organ grows through an opening and protrudes to some other area, thereby altering its normal location.There are many types of hernia, but the epigastric hernia is the most common form. An epigastric hernia occurs when abdominal tissue...

• Colonoscopy: What to Expect During Recovery

  A colonoscopy is an outpatient procedure, wherein the rectum and the large intestine are checked. You do not need to stay overnight at the hospital or clinic unless your doctor needs to have additional tests done or needs you to be monitored for a short while.A colonoscopy can be used to identify...