The benign type is seen in benign lesions such as benign tumors and following trauma. An aggressive type is seen in malignant tumors, but also in benign lesions with aggressive behavior, such as infections and eosinophilic granuloma.
When setting up a Hookah air system, you will frequently need an array of metal fittings. For use around water, you should use stainless steel or brass fittings only. This is especially important when diving in salt water. Fittings made of ferrous metal will rust or corrode when used in, or near a water environment.
Hookah Smoke and Cancer. 1  The charcoal used to heat tobacco in the hookah increases the health risks by producing smoke that contains high levels of carbon monoxide, metals, and cancer-causing chemicals. 2  A typical 1-hour-long hookah smoking session involves 200 puffs, while an average cigarette is 20 puffs.