Journal
JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
Volume 85, Issue 1, Pages 105-113Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jaad.2020.11.006
Keywords
autoimmune disease; localized scleroderma; morphea; pathology; prognosis; sclerosis
Categories
Funding
- Yonsei University College of Medicine [6-2020-0081]
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The study found that the pattern and degree of sclerosis in morphea are associated with the anatomic site of the lesion, severe inflammation, and concomitant autoimmune disease. Increased risk of poor treatment response is correlated with tissue eosinophils and basal pigmentation. Skin biopsy samples may show specific features of morphea that indicate the need for aggressive treatment and monitoring.
Background: The clinicopathologic correlations and prognostic risk factors for refractory disease in morphea (localized scleroderma) are poorly described. Objective: To investigate the association between clinical characteristics and histopathologic features of morphea and identify risk factors for refractory disease. Methods: We retrospectively reviewed the clinical and histopathologic features, treatment regimens, and clinical responses for 137 patients with biopsy-proven morphea from January 2008 to May 2019. Multivariate analysis was conducted to identify factors associated with poor treatment response. Results: We detected associations between the pattern and degree of sclerosis and the anatomic site of the lesion, as well as between severe inflammation and concomitant autoimmune disease. Additionally, both bottom-heavy sclerosis and increased inflammation were associated with functional limitations/clinical symptoms. Based on our multivariate analysis, we found that increased risk of poor treatment response was correlated with tissue eosinophils and basal pigmentation. Limitations: This was a single-center retrospective study. Conclusion: Skin biopsy samples could show specific features of morphea, including eosinophil infiltration and basal pigmentation, which may indicate the need for aggressive treatment and frequent monitoring.
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