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Full-thickness biopsy of the jejunum reveals inflammation and enteric neuropathy in irritable bowel syndrome  Hans Törnblom, Greger Lindberg, Björn Nyberg,

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Presentation on theme: "Full-thickness biopsy of the jejunum reveals inflammation and enteric neuropathy in irritable bowel syndrome  Hans Törnblom, Greger Lindberg, Björn Nyberg,"— Presentation transcript:

1 Full-thickness biopsy of the jejunum reveals inflammation and enteric neuropathy in irritable bowel syndrome  Hans Törnblom, Greger Lindberg, Björn Nyberg, Béla Veress  Gastroenterology  Volume 123, Issue 6, Pages (December 2002) DOI: /gast Copyright © 2002 American Gastroenterological Association Terms and Conditions

2 Fig. 1 Control ileum with normal number of intraepithelial lymphocytes (arrows). (CD3 immunoperoxidase; original magnification ×380.) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions

3 Fig. 2 Proximal jejunum with increased number of intraepithelial lymphocytes (arrows) (41 IELs/100 epithelial cells). (CD3 immunoperoxidase; original magnification ×380.) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions

4 Fig. 3 Normal myenteric ganglion. The neurons show normal cytomorphology with moderate or slight eosinophilic and finely granular cytoplasm. Note that there is no vaculization or deeply stained, dark cytoplasm. The nuclei are round with well-visible nucleoli. No signs of nuclear shrinkage or homogeneous dark basophilia of the chromatin as in pyknotic (shrunken) degenerating nuclei. The small, round nuclei belong to glia cells (thin arrows), whereas the elongated pale nucleus is that of a Schwann cell (thick arrow). (H&E; original magnification ×380.) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions

5 Fig. 4 Lymphocyte infiltrate within myenteric ganglion. Thick arrow shows a neuron and a few lymphocytes to the right of the neuron. There are more lymphocytes within the area marked by thin arrows. (H&E; original magnification ×380.) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions

6 Fig. 5 There is a focus of T lymphocytes within the myenteric ganglion marked by thin arrows. Thick arrow: neuron. (CD3 immunoperoxidase; original magnification ×380.) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions

7 Fig. 6 Degenerative neuropathy. Myenteric ganglion with 2 shrunken degenerated neurons marked by thin arrows. The cytoplasm is vacuolated and the nuclei are pyknotic. One normal neuron is shown by a thick arrow. (H&E; original magnification ×380.) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions

8 Fig. 7 Normal muscularis propria. The inner circular layer (C) is considerably thicker than the outer longitudinal muscle layer (L) (bar = 200 μm). (H&E) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions

9 Fig. 8 The thickness of the 2 muscle layers are equal because of a thickened longitudinal muscle layer (L) secondary to hypertrophy of the myocytes (C, inner circular muscle layer). (Desmin immunoperoxidase; original magnification ×140.) Gastroenterology  , DOI: ( /gast ) Copyright © 2002 American Gastroenterological Association Terms and Conditions


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