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Bathing Trunk Nevus

A bathing trunk nevus is a darkened discolored sometimes rough-haired area of skin usually seen at birth as a birth mark. In some cases, it is likely that this hairy or darkened patch may be spread over an extremely wide expanse on the body. On certain occasions or in certain rare cases the deformity covers the upper or lower torso, the arms, and limbs. This malady is thought to have been brought on during natal defects or problems that may take place during the growth of the fetus in the womb. However some studies show that a common occurrence viewed amongst family members indicates that the bathing trunk nevus maybe a genetic disorder. It is possible that the skin defect maybe accompanied with other birth defects. The appearance of the skin may differ from even-textured to rough or wart-like whilst the color may range from dark-brown to bluish black. Because of its defective and unnatural appearance the disorder is likely to cause emotional problems. In extremely rare cases there is also a possibility of the skin disorder developing into some type of skin cancer or melanoma. The risk however is placed somewhere between three to five percent.

Emotional or psychological intervention may be needed to address the emotional consequence of experiencing a disfiguring disorder. This would be needed when the disorder is spread across a large portion of the body and cannot be hidden from public view. In areas where the nevus is comparatively on a smaller scale, the disorder may not hamper daily life.

To treat this disorder sometimes surgery would be needed to get rid of the nevus involving the use of skin grafting where it would be required. In places where there is a very large presence of nevi, it may be taken out in various phases. Any change in the shape and size of the birthmark must be looked into by your health care provider. If there are obvious differences in a stagnant mark or further discoloration in the patch of skin, it should be evaluated preferably by a biopsy to find out whether the cells have changed their nature or whether it requires treatment. On other rare occasions it has been noticed among some patients that the bathing trunk nevus syndrome is accompanied with another condition known as leptomeningeal melanocytosis. This condition causes the abnormal increase of pigment-developing cells in the head, which causes hydrocephalus, motor irregularities, and convulsions.