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. 2014 Nov 8;9(3):387–404. doi: 10.1007/s12105-014-0581-1

Fig. 4.

Fig. 4

PA stained by Alcian Blue at pH 2.5 followed by periodic acid-Schiff (AB pH 2.5-PAS). Luminal structures containing a mixture of neutral and acid glycoproteins staining royal blue are seen at the left part of the picture. The asterisk indicates stromal glycosaminoglycan staining sky blue