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Licensed Unlicensed Requires Authentication Published by De Gruyter January 9, 2020

Pyoderma gangrenosum underrepresentation in non-dermatological literature

Ashley M. Reese ORCID logo, Carter K. Haag, Enjae Jung, Allison C. Nauta, Robert A. Swerlick and Alex G. Ortega-Loayza
From the journal Diagnosis

Abstract

Background

Pyoderma gangrenosum (PG) is a chronic, ulcerative neutrophilic dermatosis. PG presents a diagnostic challenge, largely due to the many mimicking diseases, the lack of confirmatory laboratory or biological markers, and the absence of widely accepted diagnostic criteria. In particular, PG is often mistaken for necrotizing soft tissue infections (NSTI).

Methods

We reviewed four major textbooks each in general surgery, plastic surgery, trauma surgery, vascular surgery, emergency medicine, and dermatology. We also performed a search of review articles addressing NSTI and necrotizing fasciitis (NF).

Results

Ten out of the 20 non-dermatology textbooks did not list PG anywhere, and only two listed a differential diagnosis for PG. None of the non-dermatology textbooks indicated PG in the NSTI differential diagnosis, while three of the dermatology textbooks included PG in the NSTI differential diagnosis. PG was listed in all of the dermatology textbooks. Only one of the NSTI and NF articles mentioned PG in the differential diagnosis.

Conclusions

There is an underrepresentation in major textbooks of surgery and emergency medicine and in NSTI and NF review articles when it comes to diagnosing PG. This might be leading to trainees and advanced providers in these fields being uninstructed on PG, and likely contributes to PG misdiagnosis and mismanagement. We recommend PG be included in the differential diagnosis of chronic ulcers and NSTI in non-dermatology textbooks. We also suggest adding identification and diagnosis of inflammatory mimickers of NSTI (e.g. PG) in teaching modules in surgical and emergency specialties to address this knowledge gap.


Corresponding author: Ashley M. BS, Department of Dermatology, School of Medicine, Oregon Health and Science University, 3303 SW Bond Ave, Portland, OR 97239, USA, Phone: +541-219-0296, Fax: +503-346-8106

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

  5. Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.

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Received: 2019-11-14
Accepted: 2019-12-06
Published Online: 2020-01-09
Published in Print: 2021-02-23

©2020 Walter de Gruyter GmbH, Berlin/Boston

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