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Woringer-Kolopp disease (pagetoid reticulosis). Four cases with histopathologic, ultrastructural, and
Abstract:
Four patients had localized lesions of Woringer-Kolopp disease (pagetoid reticulosis). The clinical appearances and histopathologic features with light microscopy of the four cases were similar. However, electron microscopy in all four cases and enzyme histochemistry studies and immunophenotyping with monoclonal antibodies in three cases disclosed two subgroups of patients. The features of the predominant cells in the intraepidermal infiltrate of three cases were most consistent with those of helper T lymphocytes with cerebriform nuclei, as found in many cases of mycosis fungoides. In one case, however, the epidermis contained a predominant population of small, medium, and large lymphoid cells of cytotoxic/suppressor T-lymphocyte cell phenotype. It remains to be determined whether Woringer-Kolopp disease is a variant of mycosis fungoides (ie, within the spectrum of the cutaneous T-cell lymphomas), a benign reactive process, or a syndrome with various causes.
Insights
Woringer-Kolopp disease, also known as pagetoid reticulosis, presents similarly in patients. Advanced microscopy reveals two distinct subgroups based on T-lymphocyte phenotypes, suggesting a link to cutaneous T-cell lymphomas.
Area of Science:
- Dermatopathology
- Immunohistochemistry
- T-cell Lymphoma Research
Background:
- Woringer-Kolopp disease (pagetoid reticulosis) is a rare skin condition.
- Initial clinical and light microscopy findings can be similar across patients.
Observation:
- Electron microscopy and immunophenotyping were performed on four patients.
- These advanced techniques revealed distinct cellular characteristics within the intraepidermal infiltrate.
Findings:
- Three patients showed T-lymphocytes with helper phenotype and cerebriform nuclei, characteristic of mycosis fungoides.
- One patient exhibited a population of cytotoxic/suppressor T-lymphocytes.
Implications:
- These findings suggest Woringer-Kolopp disease may represent a spectrum of cutaneous T-cell lymphomas.
- Further research is needed to clarify its relationship with mycosis fungoides and other T-cell disorders.