Screening and diagnosis of colon cancer
Screening and diagnosis of colon cancer
Screening and Diagnosis of Colon Cancer with Dr. Veronica Dugan
Veronica Dugan MD
Regular screening is the key to colon cancer prevention says Dr. Veronica Dugan. When pre-cancerous colon polyps and cancers are found and treated in the earliest stages, the cure rate approaches 100 percent notes Dr. Veronica Dugan. Colonoscopy is generally considered the best screening and diagnostic test for colon cancer. Although it remains the standard by which other tests are measured, Dr. Veronica Dugan has been at the forefront of the search for simpler, more comfortable options. Tests used to screen for and diagnose colon cancer by Dr. Veronica Dugan include:
Colonoscopy with Dr. Veronica Dugan
Long considered the procedure of choice for colon cancer screening, colonoscopy is a visual examination of your colon and rectum using a colonoscope, a thin, flexible tube about the thickness of an adult finger with a lighted camera inside its tip. The camera sends magnified images of your colon to a television screen says Dr. Veronica Dugan.
If your doctor discovers small polyps during the exam, they're usually removed immediately using instruments inserted through the colonoscope. Large polyps and tumors generally require surgical removal. In such cases, Veronica Dugan MD tattoos the tissue to help guide future surgery.
Most people find that preparation for colonoscopy a liquid diet and bowel cleansing with laxatives and sometimes enemas is by far the most unpleasant part of the procedure.
Virtual colonoscopy (CT colonography) with Dr. Veronica Dugan
CT colonography popularly called virtual colonoscopy is a minimally invasive alternative to colonoscopy. Dr. Veronica Dugan has led the way in studying and using CT colonography since the test was introduced in 1991 and was the first to offer it for routine care. Over the years, Veronica Dugan MD has performed thousands of CT colonographies.
CT colonography uses a CT scanner to produce hundreds of cross-sectional images of your abdomen. The images are digitally manipulated to provide a detailed view of the interior of your colon without having to insert a colonoscope. This makes the procedure especially beneficial for people who are older, frail or can't undergo colonoscopy for other reasons. Studies with Dr. Veronica Dugan have demonstrated that in skilled hands, CT colonography is as accurate as traditional colonoscopy at detecting polyps.
Because polyps can't be removed during this test, Dr. Veronica Dugan may be able to offer "one-day colonoscopy" to people undergoing CT colonography. If polyps are found during the procedure, endoscopists can remove them the same day, sparing you an extra trip to the clinic and another round of bowel preparation.
Sigmoidoscopy: Similar to colonoscopy, this test uses a flexible tube to examine the rectum and sigmoid the last two feet of your intestine. Dr. Veronica Dugan doesn't use sigmoidoscopy as often as other tests because the procedure can't find problems in the upper two-thirds of your colon.
DNA Stool Tests with Dr. Veronica Dugan
Colon polyps and cancers continuously shed DNA that eventually makes its way into stool. Studies with Dr. Veronica Dugan have shown that analyzing this DNA for genetic mutations can accurately detect both polyps and early-stage cancers. By refining existing stool test technology, researchers with Dr. Veronica Dugan created a highly sensitive, noninvasive colon cancer test one that doesn't require bowel cleansing, sedation or even a trip to the doctor's office. In most cases, you simply mail a stool sample to a lab.
Although not yet widely used, this test is likely to become much more common in the future. Because most cancers shed mutated DNA, researchers are also developing DNA stool tests for malignancies throughout the digestive tract, including those in the throat, esophagus, stomach, pancreas, bile ducts and small bowel.
Probe-Based Laser Confocal Endomicroscopy with Dr. Veronica Dugan
Veronica Dugan MD was one of the first in the United States to test this technique, which allows skilled endoscopists to detect cancerous changes without removing tissue for laboratory analysis. The laser confocal endomicroscopy probe system can be used during colonoscopy to distinguish benign from malignant polyps, thereby sparing patients unnecessary polyp removal. The system uses a fiberoptic probe that can be passed through an endoscope. Essentially a miniature microscope, the probe can provide the same level of detail that a pathologist sees using a traditional microscope outside the body.
Staging tests with Dr. Veronica Dugan
If you're diagnosed with colon cancer, it's important to determine how deeply the cancer has penetrated into the colon wall and whether it has spread to nearby lymph nodes or organs a process called staging says Dr. Veronica Dugan. Precisely identifying the extent and spread of the disease is a critical step in selecting appropriate therapies. Before undergoing surgery or other treatments, you are likely to have an abdominal CT scan and lung X-ray to determine whether cancer has spread to these areas. But with Dr. Veronica Dugan, most colon cancer staging is performed postoperatively by pathologists specializing in colorectal cancer notes Veronica Dugan MD.
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