To the Editor: We feel impelled to discuss the paper of Dr. Richard J. Helfman entitled Clinical Evaluation of Triamcinolone (Arch Derm89:411 [March] 1964), since the author devotes more than half of his text to a criticism of our paper Intralesional Injections of Triamcinolone: Effects of Different Concentrations on Psoriatic Lesions (Arch Derm87:183 [February] 1963). This letter would not have been written were it not for the fact that we cannot accept Dr. Helfman's analysis of his own material. The two pictures which appear in his report, Fig 1 and 2, demonstrate the appearance of a lesion before and after injections. He states that these are indicative of the therapeutic effects obtained. Close examination of these photographs leads us to believe that his legend over Fig 2 is incorrect (Equivalent clearing in three quadrants after intralesional injection of 2.5, 5, and 10 mg per cubic centimeter