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'Virtual biopsy' allows doctors to accurately diagnose precancerous pancreatic cysts

Research from doctors at The Ohio State University Wexner Medical Center has discovered a new "virtual biopsy" allows them to definitively diagnose cysts in the pancreas with unprecedented accuracy.

This means they can eliminate precancerous cysts and potentially save lives.

The current standard involves testing the fluid inside the cysts.

It correctly identifies them as benign or precancerous 71 percent of the time.

Researchers found that when the virtual biopsy is added to the standard of care, the diagnostic accuracy jumps to 97 percent.

The study has been published in Clinical Gastroenterology and Hepatology and was recently presented at the American Pancreatic Association's Annual Meeting.

"Pancreatic cysts are common, and it can be difficult to distinguish the benign cysts from those destined to become cancerous, but this procedure allows us to do that quickly and with confidence," said Dr Somashekar Krishna, a gastroenterologist and lead author of the study. "We hope that, at the end of the day, we are saving lives either by diagnosing pancreatic cancer early on before it develops into cancer, or we are preventing unnecessary surgery of a benign, harmless pancreatic cyst."

The diagnostic method tested in the study provides doctors with a microscopic view of the cyst wall, which is produced by a tiny scope that emits laser light inside the cyst.

This allows doctors to determine almost immediately if it is precancerous.

"Many times, we are able to tell the patient right after the procedure, 'You have a precancerous cyst, and we need to send you to the surgeon to have it removed'," said Krishna, who is an associate professor in Ohio State's College of Medicine and is also affiliated with The Ohio State University Comprehensive Cancer Center - Arthur G. James Cancer Hospital and Richard J. Solove Research Institute. 

A majority of patients get diagnosed with pancreatic cysts incidentally when getting a MRI or CT scan for another reason.

Nearly 40 percent of MRIs done of the abdomen reveal pancreatic cysts and the chance of having them increases with age.

More than 45,000 Americans die of pancreatic cancer each year, making it the third-leading cause of cancer deaths.

Patients usually don't have symptoms until the cancer is advanced, making early diagnosis and treatment a challenge.

Ohio State researchers are now working to train doctors at hospitals nationwide to perform this new diagnostic method and read the images provided by the scope to catch dangerous cysts and prevent pancreatic cancer for more patients.

They're also working to develop artificial intelligence that will flag cases that are likely precancerous so doctors can act quickly.

Source: Ohio State University Wexner Medical Center

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