Leukaemia is best described as cancer of which tissue type?

Leukaemia is best described as cancer of which tissue type?

• A. Epithelial tissue
• B. Blood-forming tissues in bone marrow
• C. Muscle tissue
• D. Nerve tissue

Answer: (B)

Leukemia is a cancer of the blood-forming tissues in bone marrow, because it arises from malignant transformation of hematopoietic cells that normally reside there and produce blood cells. In leukemia, these precursor cells proliferate uncontrollably and crowd out normal blood cells, leading to issues like fatigue, infection, and easy bleeding. This distinguishes it from cancers of epithelial tissue (carcinomas), muscle tissue (sarcomas), or nerve tissue, which originate in those other tissue types rather than in the bone marrow’s blood-forming system.

Leukemia is a cancer of the blood-forming tissues in bone marrow, because it arises from malignant transformation of hematopoietic cells that normally reside there and produce blood cells. In leukemia, these precursor cells proliferate uncontrollably and crowd out normal blood cells, leading to issues like fatigue, infection, and easy bleeding. This distinguishes it from cancers of epithelial tissue (carcinomas), muscle tissue (sarcomas), or nerve tissue, which originate in those other tissue types rather than in the bone marrow’s blood-forming system.