Examples from literature

• A carcinoma or cancer is a malignant tumor, that is, one that tends to grow worse and to reappear if it apparently is removed. 
• A frequent symptom of carcinoma of the uterus is hemorrhage at irregular times after the menopause. 
• Glandular carcinoma originates in organs such as the breast, and in the glands of mucous membranes and skin. 
• Transition forms between adenoma and carcinoma are also met with in the rectum and large intestine, and these should be treated on the same lines as cancer.