Pure red cell aplasia with t-cell large granular lymphocytic leukemia

Area of Science:

• Hematology
• Oncology
• Immunology

Background:

• Pure red cell aplasia (PRCA) is a rare anemia characterized by the selective failure of erythroid precursors in the bone marrow.
• Patients with PRCA often present with severe anemia and reticulocytopenia.
• The differential diagnosis for PRCA is broad, including autoimmune conditions, infections, and drug-induced causes.

Observation:

• A 64-year-old Asian male with a history of colorectal adenocarcinoma presented with symptoms of anemia.
• The patient had previously received six cycles of oxaliplatin and capecitabine chemotherapy four years prior to presentation.
• Diagnostic workup revealed the coexistence of PRCA and T-cell large granular lymphocyte leukemia.

Findings:

• Bone marrow examination confirmed PRCA, demonstrating a lack of erythroid precursors.
• Immunophenotyping and molecular studies confirmed the diagnosis of T-cell large granular lymphocyte leukemia.
• The patient's history of oxaliplatin and capecitabine chemotherapy was considered a potential contributing factor to the development of PRCA.

Implications:

• This case underscores the importance of considering chemotherapy-induced PRCA in patients with a history of treatment with agents like oxaliplatin and capecitabine.
• The co-occurrence of PRCA and T-cell large granular lymphocyte leukemia presents a complex clinical scenario requiring careful management.
• Further research is warranted to elucidate the potential pathogenetic links between chemotherapy, T-cell large granular lymphocyte leukemia, and PRCA.