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C. E. Rees, M.D.
JAMA. 1937;109(11):866-867. doi:10.1001/jama.1937.92780370004012c.
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A recent query1 in The Journal concerns injury resulting from the penetration of tissue by fuel oil from a Diesel engine. Since the reply indicates that no such cases have been reported in the medical literature, the present case report and discussion may be of interest.

A motor mechanic, aged 47, was testing the jet of a Diesel engine. He was holding the jet, which he had removed from a cylinder head, about 1 inch from the tip of his right middle finger when he tripped the valve. Oil was forced from the jet into the finger at a pressure which he estimated to be about 4,000 pounds. There was immediate slight bleeding from several points in the finger-tip and pain, which gradually became intense. When I first saw the patient twenty-four hours later opiates were necessary to relieve the pain. At this time the finger and hand


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