PMC3959469_01
Flat reddened lesion appearing as erosion
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PMC3959469_01_AnnGastroenterol-24-53-g001.jpg
F1
Endoscopy revealed a diminutive flat reddened lesion measuring less than 2mm which appeared as an erosion in the proximal gastric body and a second diminutive one in the distal part of the gastric body [Fig. 1a, b].
The lesion as seen with magnification endoscopy (x115), without (a) and with NBI (b)
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F2
At the centre of the lesion, the pit structure had disappeared, and although the capillary network was preserved, underneath the epithelium, a faint yellowish hue could be seen [Fig. 2a, b].
Histology showed a carcinoid tumor (on haematoxylin eosin stain x100 on the left and immunohistochemistry with chromogranin on the right)
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PMC3959469_01_AnnGastroenterol-24-53-g003.jpg
F3
This image was suspicious of microcarcinoid tumors as we have already described, and this was confirmed by histology which showed round-to-oval enterochromaffin-like cells in nests which stained positive for chromogranin [Fig. 3].