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A person suspected to have cancer had th...

A person suspected to have cancer had the affected tissue sent for biopsy. The results showed malignancy. Comment on it.

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i. Carcinoma : Cancer of epithelial cells. e.g. Skin cancer, breast cancer, lung cancer etc.
ii. Sarcoma : Cancer of connective tissues. e.g. Bone cancer, cancer of lymph nodes etc.
iii. Melanoma: Cancer of Melanocytes (a type of skin cells)
iii. Leukaemia : Cancer of WBC (blood cancer)
iv. Lymphoma : Cancer of lymph nodes and spleen.
Characteristics of cancer cells
i. Cancer is the uncontrolled proliferation of cells.
ii. They do not differentiate.
iii. They grow and disorganise the tissues in which they occur.
iv. They have large nucleus, nucleolus and more ribosomes.
v. They lose adhesive junctions with other cells.
vi. They have abnormal amount of DNA and hence are genetically abnormal.
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