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Granular cell dermatofibroma

H P Soyer1, D Metze, H Kerl

  • 1Department of Dermatology, University of Graz, Austria.

The American Journal of Dermatopathology
|April 1, 1997
PubMed
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A novel variant of dermatofibroma, termed granular cell dermatofibroma, is described. This benign skin tumor exhibits characteristic granular cells due to cytoplasmic lysosomal accumulation, expanding the known spectrum of dermatofibromas.

Area of Science:

  • Dermatopathology
  • Histology
  • Oncology

Background:

  • Dermatofibromas are common benign fibrohistiocytic skin neoplasms.
  • Granular cell changes can be seen in various cutaneous neoplasms.
  • The histopathologic spectrum of dermatofibromas is broad.

Observation:

  • This study details the histopathologic features of a dermatofibroma variant with abundant granular cells.
  • Immunohistochemical and ultrastructural analyses confirmed the diagnosis.
  • Cellular granularity results from cytoplasmic accumulation of lysosomal structures.

Findings:

  • A novel variant, granular cell dermatofibroma, is identified.
  • This variant displays characteristic histopathologic features of dermatofibroma.

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  • The granular cell morphology is attributed to lysosomal accumulation.

    • Implications:

    • Granular cell dermatofibroma expands the histopathologic classification of benign fibrohistiocytic proliferations.
    • Recognition of this variant is important for accurate dermatopathologic diagnosis.
    • Understanding cellular granularity aids in differentiating various cutaneous neoplasms.