Which type of cancer is characterized by a sudden increase in abnormal, immature lymphocytes? a. oat cell cancer b. colorectal cancer c. Hodgkin's lymphoma d. acute lymphocytic leukemia

Acute lymphocytic leukemia (ALL) is characterized by a dramatic rise in immature lymphocytes, known as lymphoblasts, which crowd out healthy blood cells in the bone marrow. This condition primarily affects children, but it can also occur in adults, making prompt diagnosis and treatment crucial for improving outcomes. Diagnosing ALL usually involves a complete blood count (CBC) that reveals an elevated white blood cell count, while a bone marrow biopsy can confirm the presence of the abnormal lymphocytes. Treatments may include chemotherapy, targeted therapy, and sometimes stem cell transplants, aiming to restore healthy blood cell production.