Thyroid

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Author: Mikael Häggström [note 1]

Fixation

Generally 10% neutral buffered formalin. Fix all thyroids at least overnight to avoid artifactual nuclear atypia.[1]

  See also: General notes on fixation


Gross processing

Selection and trimming

  • Hemithyroidecomy (lobe + isthmus) or lobectomy, including completion thyroidectomies: Use separate colors over the cut surface and the outer “capsular” surface.[notes 1]

  • None of the outer “capsular” surface should be inked like the cut surface.[notes 1]

  • Intact total thyroidectomy: Separate colors for each lobe and the isthmus.

  • If no appreciable isthmus, Separate colors for each lobe.

  See also: General notes on gross processing


Notes

  1. ↑ 1.0 1.1 Separate coloring allows to distinguish the thyroid margin (continuous with the other lobe) from the peripheral margin (towards soft tissues).
  1. ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.

Main page

References

  1. ↑ 1.0 1.1 1.2 1.3 . Gross Pathology Manual By The University of Chicago Department of Pathology. Updated 2-14-19 NAC.

Image sources


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