Hairy cell leukemia variant with t(2;8)(p12;q24) abnormality

Area of Science:

• Hematology
• Oncology
• Genetics

Background:

• Hairy cell leukemia variant (HCL-V) is a rare chronic B-cell lymphoproliferative disorder.
• Clinical features include splenomegaly and marked leukocytosis.
• Cytologic distinction from classical hairy cell leukemia involves nucleolar morphology.

Observation:

• This report describes a patient diagnosed with hairy cell leukemia variant.
• The patient exhibited a specific chromosomal abnormality: t(2;8)(p12;q34).
• Notably, the c-MYC oncogene rearrangement was absent in this case.

Findings:

• Cytogenetic analysis revealed a t(2;8)(p12;q34) translocation in the hairy cell leukemia variant patient.
• Absence of c-MYC oncogene rearrangement was confirmed, contrasting with some previous reports.
• This finding contributes to the limited cytogenetic data available for HCL-V.

Implications:

• The study expands the understanding of the genetic landscape of hairy cell leukemia variant.
• It highlights the heterogeneity of chromosomal abnormalities in HCL-V.
• Further research into the molecular mechanisms underlying HCL-V with different cytogenetic profiles is warranted.