Which one of the following statements is correct?

Options

A. Patients, who had undergone surgery are given cannabinoids to relieve pain
B. Benign tumours show the property of metastasis
C. Heroin accelerates body functions
D. Malignant tumours may exhibit metastasis

Answer

D

Explanation

Malignant tumour fust grows slowly. No symptoms are noticed. This stage is called the latent stage, The tumour later grows quickly. The cancer cells go beyond adjacent tissue and enter the blood and lymph. Once this happens, they migrate to many other sites in the body, where the cancer sells continue to divide. It is called as metastasis. Only malignant tumours are properly designated as cancer.