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Primary purely intradermal pleomorphic liposarcoma.

J Fernando Val-Bernal1, M Carmen González-Vela, Jorge Cuevas

  • 1Department of Anatomical Pathology, Marqués de Valdecilla University Hospital, Medical Faculty, University of Cantabria, Santander, Spain.

Journal of Cutaneous Pathology
|September 3, 2003
PubMed
Summary
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Pleomorphic liposarcoma (PLPS) rarely occurs in the dermis, with a case reported on the nose. Despite its high-grade appearance, intradermal PLPS demonstrates a favorable prognosis, crucial for accurate diagnosis and treatment.

Area of Science:

  • Dermatopathology
  • Sarcology
  • Oncology

Background:

  • Pleomorphic liposarcoma (PLPS) is a rare, high-grade sarcoma typically found in deep soft tissues of adults.
  • Dermal occurrence of PLPS is exceptionally uncommon.

Observation:

  • A case of PLPS in a 75-year-old woman presented as an intradermal lesion on the nose.
  • Histologic examination confirmed PLPS, with tumor cells focally expressing calretinin.

Findings:

  • This report adds to the four previously documented cases of dermal PLPS, all occurring in adults.
  • The intradermal PLPS exhibited a well-circumscribed, dome-shaped morphology (1.2 cm).
  • One patient experienced local recurrence, but no distant metastases or disease-related deaths were observed.

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Implications:

  • Dermal PLPS, despite high-grade morphology, has a relatively favorable prognosis.
  • Accurate diagnosis is essential to differentiate from pleomorphic lipoma, atypical fibroxanthoma, melanoma, and metastatic carcinoma.
  • Recognition of this rare liposarcoma subtype prevents misdiagnosis and ensures appropriate management.