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. 2013 Oct 1;8(10):e76281. doi: 10.1371/journal.pone.0076281

Figure 5. Syncytin-1 protein expression is found in MF skin lesions but not in lichen planus.

Figure 5

A) Morphologically malignant lymphocytes within Pautrier’s microabscesses (invading the epidermis) stained positive (red arrow) for Syncytin-1 in immunohistochemistry, DAB 40x B) same sample as in a) but with NovaRED as a chromogen, 100x, C) same sample as in A) without primary antibody, DAB 40x, D) Lichen ruber planus sample with no Syncytin-1 expression albeit abundant numbers of inflammatory T cells, NovaRED 20x, E) in folliculotropic MF, Syncytin-1-positive lymphocytes protruding in the hair follicle, 20x and F) human placenta as a positive control, 20x. Scale bar is 20µm.