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Philly docs solve riddle of patients who cough up 'tree branches'

For the parents of Jameson Finley, there was one thing more alarming than when he coughed up branch-shaped chunks of a substance with the consistency of string cheese.

Maxim Itkin, an interventional radiologist at the Hospital of the University of Pennsylvania, found a way to track the flow of lymphatic fluid using X-ray imaging equipment.
Maxim Itkin, an interventional radiologist at the Hospital of the University of Pennsylvania, found a way to track the flow of lymphatic fluid using X-ray imaging equipment.Read moreDAVID MAIALETTI / Staff Photographer
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