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Cutaneous epithelioid angioleiomyoma

M P Heffernan1, B R Smoller, S Kohler

  • 1Department of Dermatology, Stanford University School of Medicine, California, USA.

The American Journal of Dermatopathology
|April 29, 1998
PubMed
Summary

This study introduces cutaneous epithelioid angioleiomyoma, a rare skin tumor with epithelioid cells and smooth muscle differentiation. It may be the benign counterpart to cutaneous epithelioid leiomyosarcoma.

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Area of Science:

  • Dermatology
  • Pathology
  • Oncology

Background:

  • Dermal neoplasms encompass a wide range of tumors, including those of smooth muscle origin.
  • Epithelioid morphology in dermal tumors can present diagnostic challenges.
  • Understanding rare variants is crucial for accurate diagnosis and patient management.

Observation:

  • A 44-year-old man presented with a solitary, tender, 4-mm nodule on his leg.
  • Excisional biopsy revealed well-circumscribed dermal epithelioid tumor nodules.
  • Microscopic examination showed prominent vascularity and smooth muscle differentiation.

Findings:

  • The described neoplasm exhibits epithelioid morphology and smooth muscle differentiation within the dermis.
  • The term 'cutaneous epithelioid angioleiomyoma' is proposed for this distinct entity.

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  • Literature review identified two similar cases and five cases of cutaneous epithelioid leiomyosarcomas.

    • Implications:

    • Cutaneous epithelioid angioleiomyoma represents a rare variant of dermal smooth muscle tumors.
    • This entity may be the benign counterpart to the recently described cutaneous epithelioid leiomyosarcoma.
    • Recognition of this tumor is important for differential diagnosis and treatment strategies.