< b>Hemangioma, hepatic- A common benign tumor of the liver made up of small
blood vessels. Hepatic hemangioma is the most common benign liver tumor and is 4-6
times more common in women than men (female hormones may promote its formation and
growth).
These tumors are usually small, a quarter inch (less than 1 cm) in diameter,
cause no problems and are discovered incidentally in the course of testing for an
unrelated medical problem.
Large hepatic hemangiomas do occur, can cause symptoms -- pain, nausea, or enlargement
of the liver -- and even rupture (a rare event) causing severe pain and bleeding
into the abdomen that can be an emergency.
When a hemangioma is suspected, the challenge for the physician is to be sure
that it is in fact a hemangioma and not another type of tumor, particularly a malignant
one. Most hepatic hemangiomas need no treatment. If a hepatic hemangioma is large
and causing symptoms, it can be surgically removed.
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