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  • Title: [The multifocal hepatic hemangioendothelioma. Is always a benign tumor?].
    Author: Leal N, López Santamaría M, Gámez M, Murcia J, López Gutiérrez JC, Larrauri J, Frauca E, Hierro L, Camarena C, de la Vega A, Díaz M, Jara P, Tovar J.
    Journal: Cir Pediatr; 2004 Jan; 17(1):8-11. PubMed ID: 15002718.
    Abstract:
    UNLABELLED: The hepatic multicentric haemangioma is defined by its extension, affecting all the mass of the liver. The high mortality associated with it is mostly related with the complications produced by its enormous size (haemodynamic, platelet trapping, spontaneous rupture and bleeding). There is a general belief that is a benign tumor with possibility of spontaneous regression and cure. AIM: Retrospective analysis of our recent cases of MHH with the purpose of: 1 degrees) To show the evolution and results. 2 degrees) To realize if the "benign character" of the tumor is real or if some cases may be considered as malignant tumors. MATERIAL AND METHODS: 10 cases of MHH treated in the last 10 years. In 9 the age of presentation was less than 6 months and one patient was diagnosed at 3 and half years. The diagnosis was confirmed by image techniques in 7 cases and by biopsy in 3. In 7 patients extrahepatic vascular lesions were associated prior to the treatment. Methylprednisolone was given to all the cases and alpha-2-interferon was administered to the patients that not responded to the steroids. Vincristine was added to 2 patients. In two cases the hepatic artery embolization was tried and one patient had a liver transplant. RESULTS: Four children had at least one episode of congestive cardiac insufficiency, two patients suffered a consumption coagulopathy (Kasabach Merrit syndrome), and one presented acute hepatic failure. In six children it has been complete regression of the tumor, one more is still under treatment and three died. The dead were produced by the malignant behavior of the tumor in one case (tumoral rupture of a MHH recurrence in the transplanted liver), and possibly in other (intracranial haemorrhage and hepatic failure in a liver transplantation candidate without demonstrated extrahepatic extension in the previous studies, but with multiorgan dissemination at autopsy. In both cases it was impossible to discover signs of histologic or biologic malignancy neither in the primitive lesion nor in the metastasis. CONCLUSIONS: 1a) The regression of the MHH, spontaneous or induced by the treatment is frequent. 2a) Some cases of MHH are aggressive and develop local recurrences and distant metastasis. 3a) The discrimination between MHH of "benign" or "malignant" behaviour is not possible. 4a) Despite of the unpredictable biological conduct of the tumor, the liver transplantation must be considered as an option in the symptomatic cases that not respond to the conventional treatment.
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