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A Diagnostic Challenge

Changes in Histopathologic Tumor Diagnosis of Atypical Squamous Proliferations After Surgical Removal

Rubin, Ashley G. MD*,†; Brian Jiang, Shang I. MD

doi: 10.1097/DSS.0000000000001806
Original Article
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BACKGROUND Biopsy-proven “atypical squamous proliferations” (ASPs) may prove difficult to diagnose histologically because of partial sampling, lack of complete criteria for definitive diagnosis, or overlap of histopathological features with other neoplasms. There are no guidelines concerning the management of ASPs.

OBJECTIVE To retrospectively clarify the diagnosis of biopsy-proven ASPs after surgical removal, specifically, to ascertain what fraction represent malignant tumors.

METHODS Medical records of patients who underwent surgical removal of biopsy-proven ASPs in an academic dermatologic surgical unit from June 2008 to July 2013 were examined. The resultant histopathologic diagnosis of these lesions after surgical removal, along with other demographic data, was obtained.

RESULTS Of the 71 biopsy-proven ASPs that were treated by surgical removal in the study period, 54.9% exhibited resultant pathologic diagnosis of nonmelanoma skin cancer (NMSC).

CONCLUSION Biopsy-proven ASPs present a therapeutic challenge. The authors' data illustrate the importance of subsequent tissue sampling, as these lesions often represent NMSCs.

*Veterans Affairs Hospital, Oceanside, California

Private Practice, Bernardo Dermatology, Poway, California

Department of Dermatology, University of California, San Diego, California

Address correspondence and reprint requests to: Ashley G. Rubin, MD, 2683 Via De La Valle STE G-710, Del Mar, CA 92014, or e-mail: Rubindermatology@gmail.com

The authors have indicated no significant interest with commercial supporters.

© 2019 by the American Society for Dermatologic Surgery, Inc. Published by Wolters Kluwer Health, Inc. All rights reserved.
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