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Related Experiment Videos

Eccrine syringofibroadenoma (Mascaro): an ultrastructural study.

H Sueki1, S J Miller, L M Dzubow

  • 1Department of Dermatology, University of Pennsylvania School of Medicine, Philadelphia 19104-6142.

Journal of Cutaneous Pathology
|June 1, 1992
PubMed
Summary

This study confirms eccrine syringofibroadenoma (ESFA) originates from the eccrine acrosyringeal and reveals mast cells are key to its fibrotic stroma formation.

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Area of Science:

  • Dermatopathology
  • Histology
  • Electron Microscopy

Background:

  • Eccrine syringofibroadenoma (ESFA) is a rare skin tumor.
  • Its precise differentiation and stromal histogenesis remain incompletely understood.

Observation:

  • A case of ESFA in a 45-year-old male was analyzed using light and electron microscopy.
  • Histology revealed anastomosing epithelial cords and a stroma with increased mast cells and capillaries.
  • Ultrastructural analysis showed abundant glycogen, microvilli-lined spaces, and intraepithelial duct formation.

Findings:

  • Ultrastructural features strongly support eccrine acrosyringeal differentiation of ESFA.
  • The study identified characteristic epithelial cell features, including glycogen and microvilli.
  • Mast cell hyperplasia and degranulation were observed in close association with fibroblasts and capillaries.

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Implications:

  • The findings confirm the eccrine acrosyringeal origin of ESFA.
  • Mast cell activity is hypothesized to be crucial in developing the angiofibrotic stroma.
  • This research provides insights into ESFA's pathogenesis and potential therapeutic targets.