Introduction to Human Disease: Pathophysiology for Health Professionals 6th Edition by Agnes Loeffler,Michael Hart

تمرين 7

An old adage in medicine is "iron-deficiency anemia in an adult man is colon cancer until proven otherwise." Why do you think colon cancer would cause anemia?
A) Colon cancer metastasizes to bone, replacing the blood-forming elements in the marrow.
B) The cells of the colon carcinoma require iron, so they "steal" it from the blood.
C) Red blood cells are lysed (killed) as they pass through the malignancy.
D) Blood is lost across the ulcerated surface of the cancer into the gut lumen.
E) Metastatic colon cancer destroys the kidneys, so they cannot put out the hormone that stimulates red blood cell formation.