Acute Lymphoblastic Leukemia Presenting With Severe Acute Kidney Injury Requiring Hemodialysis due to Kidney Infiltration: A Case Report.

A 66-year-old man presented with dialysis-dependent acute kidney injury without cytopenia or peripheral blasts. Kidney biopsy revealed leukemic infiltration and led to the diagnosis of Philadelphia chromosome-negative B-acute lymphoblastic leukemia. Chemotherapy resulted in remission and recovery of renal function, highlighting the importance of early biopsy in unexplained acute kidney injury.