Dermoid and epidermoids are tumors that occur when normal portions of the skin or other tissues become entrapped in the body during development. They occur in the scalp, the skull, the spinal canal and within the head. They also have a tendency to develop in the ovary. Over long periods of time they gradually increase in size. They may contain various types of tissues with them.
Causes of Epidermoid
These tumors develop during embryogenesis. Here, various layers of the body become accidentally trapped in other tissues. As they undergo normal growth they form progressively enlarging masses.
Signs and Symptoms of Epidermoid
Symptoms depend of the location of the tumor. When they occur in the scalp or skull, a painless lump develops. In the brain, they cause headaches and possibly weakness, numbness, poor balance, difficulty swallowing, and hearing loss. Dermoids of the ovary cause an enlarging mass that may be felt in the lower abdomen. Abdominal pain may occur.
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Medical Content Last Updated on 07/12/2008
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