File:Traditional serrated adenoma intermed mag.jpg

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English: Intermediate magnification micrograph of a traditional serrated adenoma, commonly abbreviated TSA, a pre-malignant lesion of the colon, i.e. a pre-cursor of colorectal cancer. H&E stain. Colonic biopsy.


  • Classically: rectum/left colon.
  • Morphology: polypoid.
  • Cytologic atypia: cigar-shaped nuclei, hyperchromasia, nuclear crowding.
  • Location of worst atypia: basal.
  • Luminal serration: present.
  • Cytoplasm: eosinophilic.

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Author Nephron


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current03:28, 23 January 2010Thumbnail for version as of 03:28, 23 January 20104,272 × 2,848 (2.64 MB)Nephron (talk | contribs){{Information |Description={{en|1=Intermediate magnification micrograph of a '''traditional serrated adenoma''', commonly abbreviated '''TSA''', a pre-malignant lesion of the colon, i.e. a pre-cursor of [[w:colorectal cancer|colorectal ca
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