Generally 10% neutral buffered formalin. Fix all thyroids at least overnight to avoid artifactual nuclear atypia.
See also: General notes on fixation
Selection and trimming
- Measure each lobe and isthmus in 3 dimensions, respectively.
- Ink outer surface, at least if malignancy is suspected.Cite error: Closing
File:How to not gross hemithyroidectomy.svg|None of the outer “capsular” surface should be inked like the cut surface.[notes 1] File:Grossing of thyroidectomy with isthmus.svg|Intact total thyroidectomy: Separate colors for each lobe and the isthmus. File:Grossing of thyroidectomy without isthmus.svg|If no appreciable isthmus, Separate colors for each lobe. </gallery> Serially section the specimen at 3-4mm intervals, such as follows:
See also: General notes on gross processing
- Cite error: Invalid
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- . Gross Pathology Manual By The University of Chicago Department of Pathology. Updated 2-14-19 NAC.
- . THYROID. Royal College of pathologists of Australia. Retrieved on 2019-12-17.