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To the Editor:—
In The Journal, February 19, Wolkin, Goodman and Kelley reported the interesting syndrome of anhydrosis following exposure to extreme heat. One case of this syndrome was studied in Louisiana during the summer of 1943. This man presented the identical picture which they describe: of uneventful previous exposure to heat with a sudden onset of weakness and malaise but no true heat or sun stroke following a particularly difficult march on a hot, humid day. On examination he showed dry skin of the extremities and trunk with pronounced sweating of only the face and neck, which they found characteristic. In the cool of the hospital he was quite comfortable unless he drank hot liquids, at which time flushing of the face associated with profuse sweating of the face and neck was reproduced. The same effect in the areas was produced by the injection of physostigmine. The findings were
Blank H. ANHIDROSIS FOLLOWING EXPOSURE TO EXTREME HEAT. JAMA. 1944;124(16):1152-1153. doi:10.1001/jama.1944.02850160058026