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["Specific" skin lesions in chronic lymphatic leukemia]
F Prignano1, M Mori, M Alaibac
1Clinica Dermatologica II, Università di Firenze.
Summary
Skin lesions in B-cell chronic lymphocytic leukemia (C-CLL) require accurate diagnosis. Immunohistochemistry of skin lesions aids in staging and prognosis for C-CLL patients.
Area of Science:
- Dermatology
- Hematology
- Oncology
Background:
- Infiltrated skin lesions are common in B-cell chronic lymphocytic leukemia (C-CLL).
- Histologically, these lesions show lympho-histiocytic infiltrates in the dermis.
- Accurate identification of these lesions is crucial for disease staging and prognosis.
Purpose of the Study:
- To define the nature of infiltrating cells in skin lesions of B-CLL patients.
- To evaluate the utility of immunohistochemistry for staging and prognosis in B-CLL.
Main Methods:
- Performed immunohistochemical analysis on skin lesions from 6 B-CLL patients.
- Used immunophenotyping to identify the nature of infiltrating lymphoid cells.
Main Results:
- Neoplastic B-cell nature of skin infiltrating cells was identified in 2 out of 6 cases.
- These 2 cases with neoplastic B-cells in skin lesions had a rapidly fatal clinical course.
- Immunohistochemical analysis correlated with clinical evolution and disease staging.
Conclusions:
- Immunohistochemical analysis of skin lesions is essential for accurate staging of B-CLL.
- This method provides important prognostic information for patients with B-CLL.
- Skin infiltration by neoplastic B-cells indicates a poor prognosis.