RT Book, Section A1 Burgin, Susan SR Print(0) ID 1175058589 T1 The Vascular Reaction Pattern T2 Guidebook to Dermatologic Diagnosis YR 2021 FD 2021 PB McGraw-Hill Education PP New York, NY SN 9780071738750 LK dermatology.mhmedical.com/content.aspx?aid=1175058589 RD 2024/04/19 AB The vascular reaction pattern comprises dermatoses that present with red, nonscaly macules, papules, or plaques. The term vascular reaction pattern may be misleading; it does not refer solely to vascular proliferations but rather to any red dermatosis without scale or blisters. Therefore, this reaction pattern can be synonymously referred to as the red reaction pattern. It is an important reaction pattern to be aware of as it houses a broad heterogeneous group of diseases that has, in common, their color.