Answer:
Early detection of cancer is essential. The methods of
cancer detection and diagnosis areas follows.
(i) Biopsy and histo-pathological
studies of the tissue/ blood/ bone marrow.
(ii) Tests for increased cell
counts (in the case of leukaemia blood cancer).
(iii) Techniques like
radiography (use of X-rays), CT (computed tomography) and MRI
(Magnetic Resonance Imaging) to
detect cancers of the internal organs.
(iv) Detection of cancer
specific antigens.
(v) Molecular biology techniques
to detect genes in individuals with inherited susceptibility to certain
cancers.
The common approaches for
treatment of cancer
(i) Surgical removal of tumour.
(ii) Irradiation of tissue to
kill cancerous cells.
(iii) Immunotherapy using interior
on to boost cancer cell killing.
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