“…Although the causes of these disorders may be different, most reflect cutaneous angiitis of two main, gross, morphologic types\p=m-\smal l punctate pattern and large reticulate pattern.3 The morphologic patterns of this reaction have been correlated with the anatomic distribution of blood vessels in the superficial dermis. 3 We report herein a case of maculopapular drug eruption that spared sites of previous irradiation. We also suggest a possible mechanism for this phenomenon.…”