Trichome

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Summary

Description
English: Stomach cancer precursor lesion.

Micrograph of gastric mucosa with high grade dysplasia. H&E stain.

Three clearly identifiable mitoses are seen. The one at the 12:00 o'clock position is tripolar, i.e. atypical. The mitoses at 3:00 o'clock and 6:00 o'clock are normal. Acute (neutrophils) and chronic (plasma cells, lymphocytes) inflammatory cells are in the lamina propria immediately underneath of the dysplastic epithelium.

Atypical mitoses are a characteristic of precancerous lesions, i.e. dysplasia, and malignancy, i.e. cancer.
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Author Nephron

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gastric adenocarcinoma

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inception

12 February 2009

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current04:29, 13 February 2009Thumbnail for version as of 04:29, 13 February 20091,842 × 1,402 (347 KB)Nephron{{Information |Description={{en|1=Stomach cancer precursor lesion. Micrograph of gastric mucosa with high grade dysplasia. H&E stain. Three clearly identifiable mitoses are seen. The one at the 12:00 o'clock position is tripolar, i.e. atypical. The mit
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