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Incidental acantholysis

E Sánchez Yus1, L Requena, P Simón

  • 1Department of Dermatology, Facultad de Medicina, Universidad Complutense, Madrid, Spain.

Journal of Cutaneous Pathology
|October 1, 1993
PubMed
Summary
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Microscopic acantholysis, a feature usually seen in Darier's disease, was incidentally found in various skin conditions. This study details 14 cases, highlighting the diverse histological patterns and proposing a new classification for acantholytic disorders.

Area of Science:

  • Dermatopathology
  • Histology
  • Oncodermatology

Background:

  • Microscopic foci of acantholytic dyskeratosis mimicking Darier's disease are documented.
  • Incidental findings of other acantholytic patterns in skin biopsies are not well-described in literature.

Purpose of the Study:

  • To report and characterize incidental microscopic acantholysis in cutaneous biopsy specimens.
  • To propose a classification for primary acantholytic disorders based on histological patterns and clinical extent.

Main Methods:

  • Retrospective analysis of 14 cutaneous biopsy specimens showing incidental acantholysis over 5 years.
  • Histopathological review to identify patterns of acantholysis and associated diagnoses.
  • Clinical data review for patient demographics, lesion location, and history of acantholytic disorders.

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Main Results:

  • 14 cases (0.15% of specimens) from 13 patients (mean age 63) exhibited incidental acantholysis.
  • Associated diagnoses included basal cell carcinoma, keratoacanthoma, psoriasis, and others.
  • Histological patterns simulated pemphigus vulgaris, superficial pemphigus, and Hailey-Hailey disease, with no patient history of these conditions.

Conclusions:

  • Incidental microscopic acantholysis occurs in diverse dermatological conditions beyond Darier's disease.
  • A proposed classification system for primary acantholytic disorders integrates histological features and clinical presentation.