Abstract
Recent articles1have drawn attention to the injury of traumatic avulsion of the skin of the penis and/or scrotum as a result of clothing having been caught in machinery. A search through articles here available has failed to elicit any case in which the entire penis was torn off. The following is the history of such a case: History.— A. B., a man aged 42, a tractor driver, on May 6, 1938 was driving a tractor on a ranch 45 miles north of San Francisco and was thrown backward from the seat, landing on the universal joint when the tractor bumped into a ditch. The lower part of the patient's trousers was caught in the universal joint and immediately wrapped around the shaft. At the same time his penis was caught in the gears and torn out. The patient walked about a mile to the ranch house, during

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