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Fig. 2. Histological analysis of the effects of sustained ß-catenin activation
in back skin of transgenic mice (lines D2 and D4). Arrows indicate outgrowths
from the permanent portion of hair follicles (days 7 and 14, line D2; day 3,
line D4). Arrowheads indicate small empty cysts (days 14, 21, line D2).
Bracket indicates a region of hyperproliferative IFE (line D4, day 9). Scale
bar: 100 µm.