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Systematized progradient multiple combined melanocytic and blue nevus.

L Pock1, J Trnka, F Vosmík

  • 1First Dermatological Clinic, Medical School of Charles University, Prague, Czechoslovakia.

The American Journal of Dermatopathology
|June 1, 1991
PubMed
Summary

This study details a rare case of unilateral pigmented macules and papules, identifying increased melanin and melanocytes. The findings suggest a combination of nevus types and epidermal melanocyte proliferation, prompting discussion on prognosis.

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Area of Science:

  • Dermatology
  • Pathology
  • Pigmentary Disorders

Background:

  • A 44-year-old woman presented with unilateral multiple progradient pigmented macules and papules.
  • The lesions were located on the upper extremity and adjacent back.

Observation:

  • Microscopic examination revealed increased melanin and melanocytes in the basal epidermis of macules.
  • Papules showed combinations of blue nevus with junctional or compound nevus.
  • A simple proliferation of melanocytes in the epidermis was also noted in papules.

Findings:

  • The histological findings indicate a complex interplay of melanocytic proliferation and melanin deposition.
  • Early macules demonstrate basal layer epidermal changes.
  • Papules exhibit features of various nevus types and epidermal melanocytosis.

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Implications:

  • Understanding the histopathology is crucial for accurate diagnosis and prognosis.
  • This case highlights a rare presentation of pigmented lesions.
  • Further investigation into the prognosis of such combined lesions is warranted.