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Primary cutaneous pleomorphic T-cell lymphoma expressing CD30 antigen
R Gianotti1, E Alessi, S Cavicchini
1First Clinic of Dermatology, University of Milan, Italy.
The American Journal of Dermatopathology
|October 1, 1991
Summary
A rare case of CD30-positive pleomorphic peripheral T-cell lymphoma (PPTL) of the skin showed a favorable prognosis. High expression of CD30 and Ki-67 did not worsen the outcome in this cutaneous T-cell lymphoma.
Area of Science:
- Dermatology
- Oncology
- Hematopathology
Background:
- Pleomorphic peripheral T-cell lymphomas (PPTL) primarily affecting the skin are uncommon.
- CD30-positive T-cell lymphomas represent a distinct group with varying clinical behaviors.
Observation:
- A rare case of a cutaneous tumor composed exclusively of CD30-positive cells was observed.
- The tumor cells expressed helper/inducer T-lymphocyte markers, CD30, and Ki-67, but not CD25.
Findings:
- Surgical excision of the single cutaneous lesion resulted in a complete cure.
- The patient remained disease-free for 2 years post-diagnosis, indicating a favorable clinical course.
- High expression of CD30 and Ki-67 did not correlate with a poor prognosis in this case.
Implications:
- This case supports the notion that some cutaneous pleomorphic lymphomas have an indolent course.
- It suggests that CD30 and Ki-67 expression levels may not be adverse prognostic indicators in all PPTL skin presentations.
- Further research into prognostic markers for cutaneous T-cell lymphomas is warranted.