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Erythema nodosum.

Luis Requena1, Evaristo Sánchez Yus

  • 1Department of Dermatology, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain. lrequena@fjd.es

Seminars in Cutaneous Medicine and Surgery
|June 5, 2007
PubMed
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Erythema nodosum is a common panniculitis presenting as tender nodules on the lower limbs. Histopathology reveals septal inflammation without vasculitis, and treatment targets underlying causes.

Area of Science:

  • Dermatology
  • Pathology

Background:

  • Erythema nodosum is the most frequent clinicopathologic variant of panniculitis.
  • It presents as a cutaneous reaction associated with diverse conditions like infections, autoimmune disorders, and malignancies.

Purpose of the Study:

  • To describe the clinical and histopathological features of erythema nodosum.
  • To outline the diagnostic and therapeutic approaches for this condition.

Main Methods:

  • Review of clinical presentations and histopathological findings in erythema nodosum.
  • Analysis of associated conditions and treatment strategies.

Main Results:

  • Erythema nodosum manifests as sudden-onset, symmetrical, tender, erythematous nodules on the lower limbs, evolving in color from red to purplish and then yellow/greenish.

Related Experiment Videos

  • Histopathology is characterized by septal panniculitis with no vasculitis, featuring inflammatory cell infiltration and Miescher's radial granulomas in later stages.

    • Conclusions:

    • Erythema nodosum is a distinct form of septal panniculitis with characteristic clinical and histopathological features.
    • Management focuses on identifying and treating associated disorders, with spontaneous resolution common and supportive care often sufficient.