Question

cancer affecting bone marrow or blood is called
a. carcinoma
b. leukemia
c. lymphoma
d. sarcoma
please select the best answer from the choices provided.
a
b
c
d

Explanation:

• Carcinoma (A): Cancer that starts in epithelial cells (e.g., skin, lining of organs). Not related to bone marrow or blood.
• Leukemia (B): Cancer of blood - forming tissues (like bone marrow). Leukemia cells (abnormal white blood cells) multiply uncontrollably in the bone marrow and enter the blood.
• Lymphoma (C): Cancer of the lymphatic system (which is part of the immune system). While related to immune cells (some of which are blood - related), it specifically affects lymph nodes and lymphoid tissues rather than bone marrow in the way leukemia does.
• Sarcoma (D): Cancer that starts in connective tissues (e.g., bone, muscle, fat). Not related to blood or bone marrow in the context of this question.

Answer:

B. leukemia