Cautery artifact

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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:

Images

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IHC

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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

  1. 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.