April: Cancer Control Month

To gain a better understanding of the importance of the control of cancer, one must first know and understand certain basic facts about the disease. Cancer is the uncontrolled growth of malignant cells. Cancer detection tests determine whether neoplasms (new, abnormal cells) are benign (non‐cancerous) units, or malignant, health‐threatening growths. Of the hundreds of known cancers, there are four types principally affecting humans: sarcoma, cancer of connective tissue and muscles; carcinoma, cancer of lining tissues; leukemia, cancer of blood‐forming tissue; and lymphoma, cancer of lymphatic tissue. Detailed scientific and medical information on cancer can be found in texts written by authorities such as Ruddon (1981).