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Related Experiment Videos

Stucco keratoses. A clinico-pathological study.

L Shall1, R Marks

  • 1Department of Medicine, University of Wales College of Medicine, Cardiff, Glamorgan, Great Britain.

Acta Dermato-Venereologica
|January 1, 1991
PubMed
Summary
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Stucco keratoses are benign skin lesions common in elderly men, typically on the lower legs. Research indicates a characteristic histological pattern, with etretinate offering temporary clinical improvement.

Area of Science:

  • Dermatology
  • Histopathology
  • Epidermal Biology

Background:

  • Stucco keratoses are benign, acquired papular warty lesions.
  • Their exact nature and pathogenesis remain uncertain.
  • Lesions commonly affect elderly men on the distal lower limbs.

Purpose of the Study:

  • To characterize stucco keratoses through clinical and histological examination.
  • To investigate the epidermal cell proliferation and ultrastructural features.
  • To assess potential treatment responses.

Main Methods:

  • Study of eight male patients with multiple stucco keratoses.
  • Clinical observation of lesion distribution and patient history (including solar exposure).
  • Histological, autoradiographic (tritiated thymidine), and ultrastructural analyses.

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Main Results:

  • Lesions were most numerous on the anterior lower legs in men aged 50-72.
  • Histology revealed regular 'church spire' retention hyperkeratosis without dysplasia or marked acanthosis.
  • Normal in vitro tritiated thymidine labelling indices and absence of viral particles were noted.
  • Two patients showed dramatic, albeit temporary, improvement with etretinate treatment.

Conclusions:

  • Stucco keratoses exhibit a distinct histological pattern of hyperkeratosis without significant epidermal hyperplasia or dysplasia.
  • The pathogenesis is likely multifactorial, possibly influenced by sun exposure.
  • Etretinate may provide transient clinical benefit, suggesting a role for retinoids in managing these lesions.