A clinical case analysis of a misdiagnosis as AS, actually DISH: A case report

Shiwei Yuan1, Xuanhua Yu1,2, Xiuqing Luo1

  • 1Department of Acupuncture, Longyan Hospital of Xiamen University, School of Medicine, Xiamen University, Longyan, China.

Medicine
|August 27, 2025
PubMed
Abstract

Insights

Misdiagnosing diffuse idiopathic skeletal hyperostosis (DISH) as axial spondyloarthritis (axSpA) is common due to overlapping symptoms. This case highlights the need for thorough evaluation and multidisciplinary collaboration to improve diagnostic accuracy and patient outcomes.

Area of Science:

  • Rheumatology
  • Radiology
  • Orthopedics

Background:

  • Axial spondyloarthritis (axSpA) and diffuse idiopathic skeletal hyperostosis (DISH) share clinical and imaging features, leading to frequent diagnostic errors.
  • A case study details a patient misdiagnosed with axSpA, later confirmed to have DISH, to explore diagnostic challenges.

Purpose of the Study:

  • To dissect the root causes of misdiagnosis between axSpA and DISH.
  • To identify critical diagnostic criteria for differentiating these conditions.
  • To devise strategies for enhancing diagnostic accuracy.

Main Methods:

  • Initial diagnosis of axSpA based on symptoms and preliminary imaging.
  • In-depth investigation including comprehensive clinical data, detailed imaging, and multidisciplinary consultation.
  • Implementation of strategies: thorough symptom collection, rational use of auxiliary examinations, and interdisciplinary collaboration.

Main Results:

  • Accurate diagnosis of DISH was achieved after initial misdiagnosis of axSpA.
  • An appropriate treatment plan was developed, leading to better symptom management and improved prognosis.
  • Demonstrated the effectiveness of comprehensive evaluation in correcting diagnostic errors.

Conclusions:

  • Highlights the importance of recognizing diagnostic limitations and cognitive biases in clinical practice.
  • Emphasizes the value of comprehensive, multidisciplinary evaluations for distinguishing axSpA from DISH.
  • Provides insights for clinicians to reduce misdiagnosis and improve patient care quality.

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