The erythrocytes, or red blood cells, or even erythrocytes are cells present in the blood, basically constituted by hemoglobin and globulin, whose function is to carry oxygen to the cells.

The amount of erythrocytes in the blood can be verified through the blood count. Monitoring this amount is important during cancer treatment, as chemotherapy, radiation therapy, and molecular-targeted drugs can reduce the amount of these cells in the blood, resulting in anemia. In addition, bone marrow involvement by hematologic malignancies can also cause anemia.

Red blood cells are produced in the bone marrow and are degraded in the liver, spleen, and bone marrow itself. Among the products of red blood cell degradation is bilirubin. Small organs that are part of the lymphatic system. They act in the defense of the body and produce antibodies. When enlarged, they are popularly called “inguas”. Among laypeople, the most well-known locations of lymph nodes are the neck, armpits, and groin. However, there are also lymph nodes in several other locations, such as above the collarbones, in the mediastinum, in the abdomen and in the pelvis.

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This content is part of the Oncoclínicas glossary with all terms related to Oncology and its treatments.
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