Immunohistochemical staining for KI67 and CD3 in the intrinsic subsets.

Shown is the summary of total counts per skin biopsy as determined by IHC staining for KI67, which stains cycling cells, and CD3, which stains T cells. Each biopsy was also analyzed for CD20 and only a small number of cells were found around dermal appendages for Morph3 (3), dSSc6 (2) and dSSc12 (2). All other samples were negative for CD20 cells. (Append = dermal appendages (hair follicles, vascular structures, eccrine glands); Epiderm = epidermis; Derm = dermis). a. Intrinsic group to which each sample was assigned. b. Average of total counts per category.