PMC5526844_01
Amyloid deposition in the rectal membrane. Histopathological characteristics of amyloidosis involved the deposition of amyloid most commonly around blood vessels in the mesenchyme of the intestinal mucosa. (A) Hematoxylin and eosinstain. (B) Congo red specific stain. (C) Methyl violet stain. (D) Congo red stain under polarized light.
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F1
Deposition of amyloid most commonly identified around blood vessels in the mesenchyme of the intestinal mucosa (Figure 1).
Amyloid deposition in the sural nerve. Histopathological characteristics showed endoneurial and perivascular amyloid deposition. (A) Hematoxylin and eosin stained cross-section of peripheral nerve demonstrating perivascular amyloid deposition. (B) Congo red specific stain without polarization. (C) Methyl violet stain. (D) Congo red staining of endoneurial amyloid with polarization.
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F2
Furthermore, endoneurial and perivascular amyloid deposition was detected in the sural nerve (Figure 2).