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Lupus Vulgaris. Presented by Dr. Louis Willard.
A man, aged 22, presented an eruption of closely set, yellowish-red, semitranslucent papules, posterior to the right ear. The involved area was soft and irregularly covered with nonadherent scales. Posteriorly, the advancing border was sharply defined and formed part of a circle. This, the oldest lesion, had begun when the patient was 4 years of age. The largest area was on the left arm; it was 10 cm. in diameter and in its center was a vaccination scar. The lesion had appeared following an immunizing injection of diphtheria antitoxin in this area, when the patient was 6 years of age. Many smaller areas were scattered over the face, the trunk and the arms.
DISCUSSION
Dr. Stanley Crawford: This was a typical case of an acute, inflammatory lupus vulgaris. All of the areas were studded with yellowish nodules that were soft and superficial,