Cavernous hepatic hemangiomas are benign liver tumors and present as incide
ntal findings on sonographic examinations, but little is known concerning t
heir natural course. Therefore, we performed a clinical and imaging follow-
up of 64 cases of cavernous hepatic hemangioma in 50 patients during an ave
rage 18.8 month period. One case presented a symptom of slightly right uppe
r quadrant pain and two cases showed thrombocytopenia. In one of the thromb
ocytopenia cases, cavernous hepatic hemangioma was resected because of Kasa
bach-Merrit syndrome. No case increased in size during follow-up, but one c
ase decreased and disappeared. These results suggested that prolonged clini
cal and imaging follow-up of cavernous hepatic hemangiomas may be needed.