Enlargement of multiple cavernous hemangioma of the liver in association with pregnancy.

Four cavernous hemangiomas were found in a 34-year-old woman after the first delivery. All four hemangiomas became enlarged after the second delivery. Due to complaints of symptoms of compression, and to rule out malignancy, surgical intervention was employed. Histologically, the tumors were typical cavernous hemangiomas. Although a relationship between enlargement of hemangiomas and estrogen was suggested, estrogen receptors were not detected in the tumors.