Retrospective Study
Copyright ©The Author(s) 2021.
World J Gastroenterol. Jun 14, 2021; 27(22): 3097-3108
Published online Jun 14, 2021. doi: 10.3748/wjg.v27.i22.3097
Figure 7
Figure 7 Histologic examination of the biopsy specimen of case 2. A: Hematoxylin and eosin staining revealed marked fibrosis of the deep layer of the mucosa wall thickening of the venules (× 40); B: Masson’s trichrome stain indicated that the deposits were stained blue, suggesting that they were collagen fibers (× 40); C: Congo red staining revealed absence of vitreous deposition, excluding amyloidosis (× 40).