Medicalese: White Patch on the Belly After Death (cont.)

Abdomen: The belly, that part of the body that contains all of the structures between the chest and the pelvis.

The abdomen is separated anatomically from the chest by the diaphragm, the powerful muscle spanning the body cavity below the lungs.

The abdomen includes a host of organs including the stomach, small intestine, colon, rectum, liver, spleen, pancreas, kidneys, appendix, gallbladder, and bladder.

The word "abdomen" has a curious story behind it. It comes from the Latin "abdodere", to hide. The idea was that whatever was eaten was hidden in the abdomen.

Vitiligo: Pronounced vit-uh-LIE- go. A condition in which the skin turns white due to the loss of melanocytes. These cells produce melanin, the pigment that gives the skin its characteristic color. (Melanocytes also impart color to the retina of the eye and the mucous membrane tissues lining the inside of the mouth, nose, genital and rectal areas). In vitiligo, the melanocytes are mysteriously destroyed, leaving depigmented patches of skin on different parts of the body. The hair that grows in areas affected by vitiligo may also turn white.

Vitiligo is a common disorder. It occurs in 1-2% of people and affects both sexes and all races equally. Vitiligo is never present at birth. It crops up between the ages of 10 and 30 in about half of cases and before age 40 in 95% of cases. More than 30% of people with vitiligo have a family history of the disorder, pointing to the presence of genetic factors capable of contributing to the condition.

As the skin gradually loses it's color, patch by patch, other people may treat someone with vitiligo like a leper, thinking they have a contagious skin disease. In fact, vitiligo is called "white leprosy" in India. Women with it are often discriminated against in marriage. If they develop vitiligo after marriage, it can be grounds for divorce.

In people with vitiligo, the melanocytes self-destruct, probably because of an autoimmune reaction in which the body mistakenly attacks its own cells. The resulting white patches of skin may enlarge and increase in number for a while, and then the condition may stabilize, only to start up again later. Injury, illness, a bad sunburn and severe stress have been known to provoke the onset or progression of vitiligo.

Vitiligo is sometimes associated with more serious disorders that also have an autoimmune cause, including: hyperthyroidism (overactivity of the thyroid gland), adrenocortical insufficiency (the adrenal gland does not produce enough cortisol), alopecia areata (patches of baldness), and pernicious anemia (a low level of red blood cells caused by the failure of the body to absorb vitamin B12). Vitiligo is also a feature of a number of genetic diseases.