Fig. 5: Immunostaining of TRAIL in “young” ((a), case No14), ‘in between’ ((b) case No10), and “old” NF ((c), case No2).

Strong, mainly nuclear staining is characteristic for “young” fasciitis (a) while only membranous-cytoplasmic staining can be observed in “old” fasciitis (c). Concerning the “in between” cases, a mixed nuclear and membranous-cytoplasmic staining could be observed (b). The “young” fasciitis (same as in (a) and (c)) was much more cellular than the “old” (c) one, but we chose a loose, myxoid area for a better demonstration of nuclear staining. Scale bar for Fig. 5—50 µm.