HEART CANCER

Why Cancer does not affect the Heart????

o      Heart cancers do occur, but very rarely cancer is in the abnormal, uncontrolled proliferation of cells, usually fatal.
o      In general, tumors may be malignant (cancerous)-rapidly fatal if untreated or benign-causes relatively little harm.
o      Cancer in any organ can be primary, originating in that organ itself or secondary when it has spread to other parts of the body. Secondary is either direct when it spreads by contiguity or indirect when the spread is through lymphatic or blood.
o      Thus heart cancer (primary cardiac tumor) is cancer that arises in the heart. Cancerous tumor begin in the heart are more often sarcomas, a type of cancer that originates in the soft tissues of the body.
o      The vast majority of heart tumors are benign; they include myxomas, myomas and fibromas.
o      Although heart cancers are rare, mostly found to be secondary, having come from some where else.
o      These include lymphomas that originate in the chest near the heart and spread by contiguity-direct. Other cancers that spread to the heart include melanomas (tumor arising in black pigment) forming cells and sarcomas- indirect spread.
o      Cancers happen when cells cease to obey the laws of cell division. This starts during cell division i.e. mutation. So, it is naturally occurring, mutants develop in more actively dividing cells and few in those that do not. The new gene is a foreign antigen.
o      A cell born out of a mutation is recognized as not self and destroyed by the immunologist response which rejects a transplanted kidney or heart.

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