Doctors find half-pound fat "egg" in 62-year-old man

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Published April 03, 2015

For 20 years, an unnamed patient suffered from urinary frequency, but lab findings didn't show anything. Then, doctors at Georgetown University Hospital discovered a large, egg-like mass in his abdomen.

A computed tomography (CT) scan on the patient's abdomen and pelvis found a 3.3-inch mass, according to a study published Tuesday in The New England Journal of Medicine. The free-floating, smooth, firm, rubbery mass measured 3.9 inches by 3.7 inches by 2.9 inches and weighed 7.7 ounces.  

The mass was identified as a peritoneal loose body, which occurs when small pieces of fat in the abdomen detach from surrounding structures and loose blood supply. The fat calcified and turned into a fibrotic mass, which is completely benign, researcher Dr. Rachael Sussman of Georgetown University Hospital, told FoxNews.com in an e-mail.

"Small peritoneal bodies are quite common, but this is the largest reported one in the literature to date," Sussman said.

See the Full Story at FoxNews.com

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