Histopathological changes in morphea and their clinical correlates: Results from the Morphea in Adults and Children Cohort V

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Abstract

Background

Histopathological features in morphea (localized scleroderma) and their clinical correlates are poorly described.

Objective

We sought to systematically describe histologic changes of morphea in a large, well-annotated cohort and determine the association between histopathology and clinical features.

Methods

This was a cross-sectional study of 83 patients enrolled in the Morphea in Adults and Children cohort. The main outcome measure was the association of microanatomical location and degree of sclerosis and inflammation seen on histologic samples with patient-reported symptoms and physician-based measures of severity.

Results

Pattern of sclerosis was associated with morphea subtype, the presence of patient-reported symptoms, and functional limitation. A bottom-heavy pattern of sclerosis was associated with pain and tightness (P = .0039 and .001, respectively). These symptoms were not associated with a top-heavy pattern. Severe inflammation may be associated with pain and functional limitation (P = .073 for both).

Limitations

Small sample size limits ability to detect associations, particularly in subgroups.

Conclusions

Histopathological examination of morphea may assist in identifying patients who may require additional monitoring and treatment. Features such as patterns of sclerosis and severity of inflammation should be included in pathology reports to help aid in clinical management.

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