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Light-Sensitive Dermatosis. Presented by Dr. J. Lamar Callaway, Durham, N. C.
S. R., a white man aged 28, a tobacco worker, presents on the face and dorsum of each hand filiform, verruca-like lesions with a translucent appearance, not unlike adenoma sebaceum. When the lesions are exposed to sunlight a severe erythema develops in a few minutes. He is prevented from swimming, playing tennis or engaging in activities that require him to be in the sunshine. A general physical examination gave normal results. Blood counts were normal, and serologic tests for syphilis gave negative results. Studies showed decided sensitivity to light. Coproporphyrin I in the urine measured 0.4960 mg.
DISCUSSION
Dr. L. W. Ketron, Baltimore: One could not interpret this condition other than as a peculiar response on the part of this patient to stimulation. Undoubtedly he is light sensitive. The response is somewhat like that in cases of the old