Pagetoid reticulosis (Woringer–Kolopp disease) mimicking eczema: a case report with immunophenotypic analysis and literature review - Summary - MDSpire

Pagetoid reticulosis (Woringer–Kolopp disease) mimicking eczema: a case report with immunophenotypic analysis and literature review

  • By

  • Yansi Lyu

  • Zonghua Wen

  • Jiefeng Jiang

  • Lyuxin Guan

  • Ziqin Gan

  • Maomao An

  • Suchun Hou

  • June 30, 2026

  • 0 min

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Objective:

To report a case of Pagetoid reticulosis (PR) misdiagnosed as eczema and to review existing literature on its clinical and immunophenotypic features, emphasizing the importance of accurate diagnosis.

Approach:
  • Case Report: A 53-year-old female with a 5-year history of a pruritic erythematous plaque on the right ankle was evaluated. Initial mismanagement as chronic eczema led to a diagnostic biopsy, which confirmed Pagetoid reticulosis.
Key Findings:
  • Pagetoid reticulosis is often misdiagnosed due to its non-specific clinical presentation.
  • Histopathological features include epidermotropic infiltration of atypical lymphocytes.
  • Immunophenotypic evaluation is crucial for accurate diagnosis and treatment planning, highlighting the variability in clinical presentation.
Interpretation:

Localized Woringer–Kolopp disease has variable clinical and immunophenotypic features, and timely diagnosis is essential for effective treatment.

Limitations:
  • The rarity of PR limits the amount of available evidence, impacting clinical understanding and management.
Conclusion:

Early biopsy and immunophenotypic evaluation are essential to avoid diagnostic delays and guide treatment.

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