Marked enlargement and post-op recurrence of hepatic hemangiomas : two cases report

Hepatic hemangiomas are the most common benign tumor of the liver, and follow-up radiologic imaging studies have normally shown no interval change in the diameter of the tumor. Among the very few tumors in which such change have been seen, growth has been minimal. However, we experienced some marked enlargement of the tumor follow-up imaging studies. First, the marked enlargement of the tumor followed by resection, and as a result, hepatic hemangioma was confirmed. Second, hepatic hemangioma was confirmed after resection, but recurred. Tumor enlargement seems to be caused by ectasia of blood-filled cystic space or estrogen stimulation, through we found no specific etiology. (author). 10 refs., 4 figs