Difference between revisions of "Cautery artifact"
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[[Image:Positive margin with cautery artefact - adenocarcinoma - high mag.jpg|thumb|225px|Cautery artefact. [[H&E stain]].]] | |||
'''Cautery artifact''', also '''cautery/crush artifact''' and '''crush artifact''', may mimic disease. It usually represents the [[surgical margin]]. | '''Cautery artifact''', also '''cautery/crush artifact''' and '''crush artifact''', may mimic disease. It usually represents the [[surgical margin]]. | ||
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COMMENT: | COMMENT: | ||
Levels were cut. A Ki-67 stain shows focal | Levels were cut. A Ki-67 stain shows focal superficial staining; however, the surface is | ||
missing. | missing. | ||
</pre> | |||
<pre> | |||
TISSUE ("BLADDER TUMOUR, DEEP"), BIOPSY: | |||
- BENIGN SUBEPITHELIAL TISSUE. | |||
- SCANT UROTHELIUM WITH CRUSH/CAUTERY ARTIFACT -- LIMITING INTERPRETATION. | |||
- NO EVIDENCE OF MALIGNANCY. | |||
</pre> | </pre> | ||
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*[[Basics]]. | *[[Basics]]. | ||
*[[Surgical margin]]. | *[[Surgical margin]]. | ||
*[[Histology artifacts]]. | |||
*[[Snare tip soft coagulation]]. | |||
==References== | ==References== | ||
Latest revision as of 06:00, 9 November 2014
Cautery artefact. H&E stain.
Cautery artifact, also cautery/crush artifact and crush artifact, may mimic disease. It usually represents the surgical margin.
Microscopic
Features:
- Elongated thin toothpick-like nuclei.
DDx:
- Dysplasia - adenomatous polyps
- Electrocution.
Images
Surgical margin with cautery - low mag. (WC/Nephron)
Surgical margin with cautery - intermed. mag. (WC/Nephron)
Surgical margin with cautery - high mag. (WC/Nephron)
www:
IHC
- Ki-67 - absent/minimal staining.
- Stains adenomatous polyps.[1]
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DESCENDING COLON, BIOPSY: - COLONIC MUCOSA WITH EXTENSIVE CAUTERY/CRUSH ARTIFACT -- LIMITING INTERPRETATION. - NO APPARENT DYSPLASIA.
POLYP, RECTUM, BIOPSY: - POLYPOID FRAGMENT OF RECTAL MUCOSA WITH CAUTERY/CRUSH ARTIFACT, INDEFINITE FOR DYSPLASIA. COMMENT: Levels were cut. A Ki-67 stain shows focal superficial staining; however, the surface is missing.
TISSUE ("BLADDER TUMOUR, DEEP"), BIOPSY:
- BENIGN SUBEPITHELIAL TISSUE.
- SCANT UROTHELIUM WITH CRUSH/CAUTERY ARTIFACT -- LIMITING INTERPRETATION.
- NO EVIDENCE OF MALIGNANCY.
See also
References
- ↑ Groisman, GM.; Amar, M.; Meir, A. (Jul 2007). "Utility of MIB-1 (Ki-67) in evaluating diminutive colorectal polyps with cautery artifact.". Arch Pathol Lab Med 131 (7): 1089-93. doi:10.1043/1543-2165(2007)131[1089:UOMKIE]2.0.CO;2. PMID 17616996.