Cellular War: The Dominance Struggle of Polycythemia Vera and Chronic Lymphocytic Leukemia Clones Within a Patient.

BACKGROUND

Polycythemia vera (PV) and chronic lymphocytic leukemia (CLL) are distinct hematological malignancies. While their coexistence is rare, it poses unique diagnostic and therapeutic challenges.

METHODS

A 50-year-old male patient presented with elevated hemoglobin levels and a marked lymphocytosis. Diagnostic investigations revealed the presence of both PV and CLL. The patient received treatment for PV followed by CLL.

RESULTS

Initial treatment with hydroxyurea for PV led to progression of CLL. Subsequent treatment with rituximab and venetoclax effectively managed CLL, although the JAK2V617F mutation re-emerged.

CONCLUSIONS

This case highlights the potential for independent origins of myeloid and lymphoid neoplasms. Further research is needed to understand the interplay between these two malignancies and optimize their management.