Morphea Profunda with Tertiary Lymphoid Follicles: Description of Two Cases and Review of the Literature

Angelo Cassisa1, Margherita Vannucchi2

  • 1Section of Pathology, Department of Oncology, San Giovanni di Dio Hospital, USL Centro Toscana, 50143 Florence, Italy.

Insights

Morphea profunda, a deep form of localized scleroderma, can present with rare lymphoid follicular hyperplasia. This case report highlights this association and reviews the underlying pathophysiology of scleroderma.

Area of Science:

  • Dermatology
  • Immunology
  • Pathology

Background:

  • Morphea profunda is a deep variant of localized scleroderma, presenting as ill-defined sclerotic plaques.
  • Localized scleroderma involves a profibrotic inflammatory profile, with transforming growth factor-beta (TGF-β) and T-lymphocyte imbalances contributing to collagen deposition.

Observation:

  • This case report details two instances of morphea profunda exhibiting lymphoid follicular hyperplasia.
  • This specific finding, lymphoid follicular hyperplasia within sclerotic bands, is infrequently documented in morphea profunda.

Findings:

  • The study observed a rare association between morphea profunda and lymphoid follicular hyperplasia.
  • A systematic literature review on localized scleroderma pathophysiology, focusing on lymphoid structures, accompanies these case reports.

Implications:

  • Understanding the role of lymphoid structures in morphea profunda may offer new insights into localized scleroderma pathogenesis.
  • Further research into the immunopathology of morphea profunda could guide future therapeutic strategies.

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