Cervical cancer cells. Coloured scanning electron micrograph (SEM) of two cervical cancer cells after having undergone division from one cell. They are still joined by a narrow cytoplasmic bridge (at centre). These large rounded cells have an uneven surface with many cytoplasmic projections which may enable them to be motile. Typically, cancer cells are large and they divide rapidly in a chaotic manner. Clumps of these cells form tumours which possess the ability to invade and destroy surrounding tissues. Cancer of the cervix (the mouth of the womb) is one of the most common cancers affecting women. It can be fatal. Magnification unknown.