Encapsulated hepatocellular carcinoma in the absence of cirrhosis: A favorable prognosis

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Abstract
Clinicopathological features were studied in 41 patients with histology-proven hepatocellular carcinoma without cirrhosis. Of these, 13 (31.7%) were positive for hepatitis B virus surface antigen (HBsAg) and 28 were negative. Twenty-six of 28 (92.9%) HBsAg negative cases had anticore antibody (anti-HBc) of low titres. The age of patients at the time of diagnosis of hepatocellular carcinoma was significantly younger in the HBsAg positive cases compared with the negative. The initial diagnostic clue was either abdominal mass or abdominal pain in 18 (43.9%) patients. However, the number of patients in whom hepatocellular carcinoma was detected by imaging in the absence of such clinical signs has increased recently. The tumour was encapsulated in 31 cases (75.6%) and most solitary encapsulated tumours were growing expansively. Tumours were resectable in 29 (70.7%) cases, and the prognosis of resected cases was much better than that of 12 non-operated cases. Twenty-one out of 29 (72.4%) resected tumours were solitary and encapsulated. However, recurrence of tumour occurred in 12 out of 28 (42.9%) cases, and it was within 2 years of resection in 11 cases. These observations and data seem to indicate that early detection and resection of tumour is very important in management, but tumour recurrence is inevitable in a considerable proportion of the patients with non-cirrhotic hepatocellular carcinoma.

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