Fine-needle aspiration biopsy of liver hemangioma.

The results of 36 consecutive fine-needle aspiration biopsies of liver hemangiomas at two University Hospitals from the years 1981-1988 are described. The sizes of the lesions were 1 to 15 cm. Six patients had malignant disease, and liver metastasis was considered possible. In 2 cases the chief complaint was related to liver enlargement, and 28 patients had other abdominal symptoms. The aspiration was performed to confirm a suggested hemangioma in 18 and because of inconclusive findings at imaging in 18 cases. The aspirations were performed with sonographic guidance using 0.7 to 0.8 mm outer diameter needles. Cellular material from a hemangioma was obtained in 21 cases; only blood was aspirated in 5 cases. Hepatocytes were seen among abundant blood cells in 10, and some fibroblasts in 5 cases. One patient had significant bleeding that was treated with a transfusion of two units of blood. Nine patients were treated surgically, and histologic samples confirmed the diagnosis of hemangioma. None of the 27 non-operated patients showed progression of the liver lesion at 3 to 48 months follow-up. Fine-needle aspiration biopsy is helpful in the diagnosis of liver hemangioma. Confusion with malignancy is unlikely. Further experience will show the frequency of complications.