Discovery Channel - Health (Internet / TV) 01/09/06 Dr. Joseph B. Zwischenberger was featured on a segment of Mystery Diagnosis on the Discovery Health Channel Monday evening. The title of the program was "A Puff of Smoke." The segment details the case of Larry Hatch, a patient from Beaumont, and the role UTMB and Dr. Zwischenberger played in diagnosing and treatment what turned out to be a 10-pound lung tumor. A film crew from True Entertainment filmed the approximately 20-minute segment in late August and early September. The segment will be aired again at 5 p.m. Sunday, Jan. 15.