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Abstract
This series summarizes all cases diagnosed as benign hepatocellular tumors occurring
at the University of Minnesota Hospitals from 1950 to 1976. Excluding hemangiomas,
40 tumors were reviewed and reclassified. Eighteen were diagnosed as focal nodular
hyperplasia (FNH), 10 as hepatocellular adenomas (HCS), 11 as bile duct adenomas (BDA),
and one as a mesenchymal hamartoma. FNH: The female: male ratio was 8:1, and the mean
age was 43 years ±18 (SD). Two patients were symptomatic; of these, one presented
with portal hypertension. Treatment consisted of local resection in 12, left hepatectomy
in one, and right hepatectomy in two. Eight patients had a history of oral contraceptive
or other steroid intake. The tumors occurring after 1964 were larger (p < 0. 05).
HCA: The female: male ratio was 4:1, and the mean age was 33 years ±20 (SD). Five
tumors were found at necropsy; the other five were symptomatic. Treatment consisted
of local resection in one patient, right hepatectomy in two, and left hepatectomy
in one. Three patients had a positive history of oral contraceptive intake. There
was no statistically significant difference in the size or the incidence of hepatocellular
adenomas between the time spans of 1950 to 1963 and 1964 to 1976. BDA: The female:
male ratio was 7:4, and the mean age was 57 years ±15 (SD). Only one case was symptomatic
and this lesion measured 10 cm. The other BDAs were 1 cm or less in diameter. There
is no suggestion that these tumors are associated with use of birth control pills.
This series has a lower proportion of symptomatic patients and of patients on oral
contraceptives than is suggested by reviewing the literature. From our series we conclude
that a causal relationship between use of oral contraceptives, or other steroids,
and benign hepatocellular tumors cannot be demonstrated. However, this conclusion
does not rule out that oral contraceptives, or other steroids, might have a contributory
influence on the initiation of certain of these tumors or on tumor size.
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Article info
Footnotes
☆Presented at the Thirty-fourth Annual Meeting of the Central Surgical Association, Buffalo, N. Y., March 3–5, 1977.
Identification
Copyright
© 1977 Published by Elsevier Inc.