A soft, water-filled cushion may be placed on your abdomen or behind your kidney. The body is positioned so that the stone can be targeted precisely with the shock wave. In an older method, the patient is placed in a tub of lukewarm water. About 1-2 thousand shock waves are needed to crush the stones. The complete treatment takes about 45 to 60 minutes. Sometimes, doctors insert a tube via the bladder and thread it up to the kidney just prior to SWL.
Print. 1  Lichen planus. Lichen planus Lichen planus is an inflammatory disorder that appears as purplish, flat-topped bumps when it affects the skin. 2  Lichen planus of nails. Lichen planus of nails When it affects the nails, lichen planus causes thinning, ridging and splitting.
Scientists typically classify lichens based on the fungal partner, and the lichen name is the same as the scientific name of the fungal partner. By far the most common fungi found in lichens are sac fungi, or ascomycetes, which produce reproductive spores in special cells shaped like sacs.ichen, living partnership of a fungus and an alga (see Algae). The fungus component is called the mycobiont and is composed of intertwined, threadlike fibers called hyphae that are tightly packed into a tissuelike sheet.