Pulmonary & Respiratory Medicine

Neoplasms

The body is created from trillions of cells that grow, divide, associated die in an orderly fashion. This method is tightly regulated and controlled by the polymer machinery inside the cell. throughout childhood, the cells of the body chop-chop divide; but, once adulthood is reached, cells usually solely divide to interchange worn-out and dying cells or to repair slashed cells.

Neoplasia describes once these cells proliferate in associate abnormal manner that's not coordinated with the encompassing tissue. These rascal cells, that square measure otherwise mentioned as growth cells, can't be controlled within the approach that standard cells will as a result of they are doing not die after they ought to and that they divide additional quickly.

As this excessive growth persists, a lump or tumour that has no purpose or perform within the body is eventually shaped. this is often mentioned as a tumour and it should be non-cancerous (benign), pre-cancerous (pre-malignant), or cancerous (malignant)