Pathology for clinicians and medical students: Difference between revisions

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Mikael Häggström (talk | contribs)
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→Staples: Biopsy vs aspiration
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[[File:True and reported surgical margin.jpg|thumb|220px|Margins of a [[lobectomy]]. A stapled portion is being cut off from the true bronchial margin, in order to take sections for microscopy from the underlying tissue, which therefore will be a few millimeters more proximal on the specimen than the true margin.]]
[[File:True and reported surgical margin.jpg|thumb|220px|Margins of a [[lobectomy]]. A stapled portion is being cut off from the true bronchial margin, in order to take sections for microscopy from the underlying tissue, which therefore will be a few millimeters more proximal on the specimen than the true margin.]]
If feasible, limit the amount of staples in essential diagnostic tissue if there is a limited amount thereof (as staples need to be removed before microtomy, and the removal may tear the tissue). If multiple staples are necessary on a surgical margin (such as both ends of an intestinal segment), keep in mind that the pathologist may have to cut away the entire stapled portion before taking sections, and therefore the section for microscopy is a few millimeters more proximal on the specimen than the true margin.
If feasible, limit the amount of staples in essential diagnostic tissue if there is a limited amount thereof (as staples need to be removed before microtomy, and the removal may tear the tissue). If multiple staples are necessary on a surgical margin (such as both ends of an intestinal segment), keep in mind that the pathologist may have to cut away the entire stapled portion before taking sections, and therefore the section for microscopy is a few millimeters more proximal on the specimen than the true margin.
==Biopsy versus aspiration==
Generally order biopsy rather than aspiration, unless you know from the pathology department that they approve of the latter for the purpose at hand. Even if there are studies of promising aspiration results for any particular purpose, such studies are generally performed by subspecialty enthusiasts in the subject at hand, and their expertise and enthusiasm is not to be compared to that of your local cytotechnicians and pathologists.


==Fixation==
==Fixation==
Retrieved from "https://patholines.org/Pathology_for_clinicians_and_medical_students"