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Related Experiment Videos

Milium-like syringoma: a case study on histogenesis.

Kuo-Hsien Wang1, Jan-Show Chu, Yun-Ho Lin

  • 1Department of Dermatology, Taipei Municipal Wan-Fang Hospital, Taipei, Taiwan.

Journal of Cutaneous Pathology
|March 10, 2004
PubMed
Summary
This summary is machine-generated.

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Milium-like syringoma is a rare variant of syringoma with a prominent cystic component, histologically showing features of eccrine duct milia. This finding clarifies its histogenesis and aids in diagnosis.

Area of Science:

  • Dermatopathology
  • Histopathology
  • Immunohistochemistry

Background:

  • Milium-like syringoma, a rare variant first described in 1987, presents diagnostic challenges due to its unclear histogenesis.
  • Limited case reports exist, necessitating further investigation into its nature.

Observation:

  • A case of periorbital milium-like syringoma was studied using histopathologic, histochemical, and immunohistochemical methods.
  • Histology revealed a large keratin-filled cyst connected to underlying syringomatous epithelial strands, with absent melanin in the cyst wall.

Findings:

  • Cytokeratin 7 was not expressed in the milia or solid epithelial parts.
  • Carcinoembryonic antigen (CEA) reactivity was observed in luminal cells of keratinous cysts, with partial positivity in the largest cyst.

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  • These findings support milia as part of syringoma with eccrine duct differentiation, potentially influenced by epidermal fusion.

    • Implications:

    • Milium-like syringoma is proposed as a syringoma variant with a significant cystic component resembling eccrine duct milia.
    • Recognizing this entity is crucial for appropriate therapeutic management.
    • Further research is needed to delineate its clinical characteristics compared to conventional syringomas.