RESUMO
An atypical case of multilocular cystic hemangioma is presented. A 4.5 cm multilocular cystic mass was incidentally found in a 66-year-old healthy woman on ultrasound screening. CT, MR imaging, and angiography were performed: however, the features that are characteristic of cavernous hemangioma were not obtained. The final diagnosis could not be made until surgery.
Assuntos
Hemangioma Cavernoso/diagnóstico por imagem , Hemangioma Cavernoso/diagnóstico , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/diagnóstico , Imageamento por Ressonância Magnética , Tomografia Computadorizada por Raios X , Idoso , Angiografia , Cistadenoma/diagnóstico , Cistadenoma/diagnóstico por imagem , Diagnóstico Diferencial , Feminino , Hemangioma Cavernoso/cirurgia , Humanos , Neoplasias Hepáticas/cirurgiaRESUMO
Several parameters calculated with a new functional imaging agent for the liver, Tc-99m DTPA-galactosyl human serum albumin, were evaluated in 9 patients with liver cirrhosis, one with hepatocellular carcinoma, and five with both liver cirrhosis and hepatocellular carcinoma. LU3, which represents the cumulative uptake of the tracer from 3 to 4 minutes after injection, showed a strong correlation (r = 0.858, p = 0.0001) with LHL15, which represents the count ratio for the liver to sum for the liver and heart 15 minutes after injection of the tracer. It also showed a strong correlation (r = -0.896, p = 0.0001) with the indocyanine green retention rate (ICGR15). Regional ICGR15 is therefore calculable from the regional LU3. GSAR15, which represents the radioactivity of the tracer retained in the blood 15 minutes after injection, showed a strong correlation (r = 0.878, p = 0.0001) with HH15, which represents the count ratio for the heart 15 minutes after injection of the tracer divided by the count for the heart 3 minutes after injection. In conclusion, LU3 and GSAR15 are interesting and promising parameters for assessing liver function.
Assuntos
Carcinoma Hepatocelular/diagnóstico por imagem , Cirrose Hepática/diagnóstico por imagem , Neoplasias Hepáticas/diagnóstico por imagem , Agregado de Albumina Marcado com Tecnécio Tc 99m , Pentetato de Tecnécio Tc 99m , Adulto , Idoso , Carcinoma Hepatocelular/fisiopatologia , Feminino , Humanos , Cirrose Hepática/fisiopatologia , Neoplasias Hepáticas/fisiopatologia , Masculino , Pessoa de Meia-Idade , CintilografiaRESUMO
Direct communication between portal branches and the hepatic vein [macroscopic intra-hepatic portal-hepatic venous shunt (IPHVS)] is a rare entity. We have recently studied five patients with this condition. Magnetic resonance imaging (MRI) clearly demonstrated in each case the portal-hepatic venous shunt due to "flow void." Multiple diffuse shunts were present in one case and a solitary shunt was demonstrated in the others. The solitary shunt was either tubular, focally dilated or racemose in configuration. The MRI findings and clinical significance of this rare entity are discussed.
