Concordance of frozen and permanent sections for the diagnosis of skin lesions

Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [et Al.]
Matthew S DinehartRandall L Breau

Abstract

There has been little written concerning the use of frozen sections to diagnose skin lesions. To compare the concordance between frozen and permanent sections of the same diagnostic skin biopsy specimen. Over 3 months, all non-melanocytic skin lesions that were biopsied in a skin cancer clinic were examined using frozen and permanent sections. Diagnoses from a dermatologist and dermatopathologist were recorded for each specimen and later examined for concordance. There was rare (0.5% of specimens) disagreement recorded between interpretations of the dermatologist and dermatopathologist. Permanent and frozen section pathology agreed with one another 90.4% of the time. Specimen processing was the most probable cause of discordance. Most discordance was not clinically relevant, although the patient was clinically affected in 35 of 2009 specimens (1.7%). Although there is a high concordance rate between diagnostic frozen and permanent sections, there are significant quality assurance and patient care advantages to following up initial diagnostic frozen sections with permanent sections of the same specimen.

References

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Citations

Jul 27, 2010·Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [et Al.]·Daniel J PearceSteven R Feldman
May 1, 2015·Journal of Cutaneous Pathology·Oluwakemi OnajinNneka I Comfere
Sep 13, 2013·Annals of Plastic Surgery·Andrew J CastleyDuncan Lambie
Feb 11, 2021·Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [et Al.]·Patrick M MulvaneyChrysalyne D Schmults
Apr 5, 2021·Journal of the American Academy of Dermatology·Esther ChungMartha Laurin Council

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