Spontaneous rupture of a hepatic angiomyolipoma: CT findings and literature review.
Angiomyolipoma is an uncommon lipomatous neoplasm of the liver, usually asymptomatic and identified incidentally. We describe the CT findings of a surgically confirmed case of spontaneously ruptured angiomyolipoma with evidence of internal hemorrhage and hemoperitoneum. The CT features were that of an exophitic, oval, well-defined mass with inhomogeneous attenuation values due to the presence of fat- and soft-tissue densities. A review of the literature identified 49 cases of hepatic angiomyolipoma. Few of these occurred in symptomatic patients and showed intratumoral hemorrhagic foci, but none had a clear rupture with external bleeding. To our knowledge, this is the first reported case with this complication.
Guidi
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Department of Radiology, University Federico II, via Pansini 5, I-80 131 Naples, Italy.
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D000368:Aged; D018207:Angiomyolipoma / Q000000981:diagnostic imaging*; D006470:Hemorrhage / Q000000981:diagnostic imaging; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D012422:Rupture, Spontaneous; D014057:Tomography, X-Ray Computed