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Abstract

Figure 1: (A) Histologically, there is a diffuse vascular proliferation within the papillary and upper reticular dermis. (B) The proliferating vessels have a lobular distribution in some areas, giving a complex “glomeruloid” appearance. The surrounding areas show endothelial cell proliferation within a desmoplastic fibroplasia, forming small vascular slits. (C) At high magnification, the endothelial cells lining the vessels are prominent, but no cytologic atypia is present. From the Departments of Pathology and Dermatology, Wake Forest University, School of Medicine, Winston-Salem, North Carolina. Address correspondence and reprint requests to Omar P. Sangueza, M.D., Department of Pathology, Wake Forest University School of Medicine, The Bowman Gray Campus, Medical Center Boulevard, Winston-Salem, NC 27157-1072. E-mail: osanguez@wfubmc.edu.