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Focal nodular hyperplasia and hepatic adenoma: epidemiology and pathology.
Maillette de Buy Wenniger, Lucas; Terpstra, Valeska; Beuers, Ulrich.
Afiliação
  • Maillette de Buy Wenniger L; Department of Gastroenterology and Hepatology, G4-213, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Dig Surg ; 27(1): 24-31, 2010.
Article em En | MEDLINE | ID: mdl-20357448
ABSTRACT
Focal nodular hyperplasia (FNH) and hepatic adenoma (HA) represent the most frequent non-vascular benign liver tumors. They are often asymptomatic. The widespread use of high-resolution imaging modalities leads to an increase of incidental detection of FNH and HA. Physicians are thus increasingly confronted with these formerly rarely recognized conditions, stressing the need for concise but adequate information on the optimal clinical strategies for these patients. FNH is the most common non-vascular benign tumor of the liver. It probably arises as a polyclonal, hyperplastic response to a locally disturbed blood flow. It is typically found in asymptomatic women. Histologically, FNH can be described as a focal form of cirrhosis. Complications of FNH are extremely rare and surgical resection is generally not advised. HA is a rare monoclonal, but benign liver tumor primarily found in young females using estrogen-containing contraceptives. Although its exact etiology is unknown, a direct link between sex steroid exposure and the uncontrolled hepatocellular growth is suspected. Complications of HA are spontaneous bleeding and malignant transformation. Withdrawal of estrogen treatment and excision of large tumors (>5 cm) are established therapeutic strategies. In conclusion, although FNH and HA are reasonably well-described clinical and histopathological entities, their epidemiology and pathophysiology need to be further unraveled.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Hiperplasia Nodular Focal do Fígado / Neoplasias Hepáticas Idioma: En Ano de publicação: 2010 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Hiperplasia Nodular Focal do Fígado / Neoplasias Hepáticas Idioma: En Ano de publicação: 2010 Tipo de documento: Article