RESUMO
An uncommon case of hepatocellular adenoma is presented. In this case, the tumor was Tc-99m SC avid rather than the typical pattern of no uptake. Liver scintigraphy was able to demonstrate that the tumor originated from the liver correlating with ultrasound and computed tomography. Background information on hepatocellular adenomas, a differential diagnosis, and a logical approach to similar liver lesions is discussed.
Assuntos
Adenoma de Células Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/diagnóstico por imagem , Coloide de Enxofre Marcado com Tecnécio Tc 99m , Adulto , Feminino , Humanos , Cintilografia , Coloide de Enxofre Marcado com Tecnécio Tc 99m/metabolismoRESUMO
Pregnancy complicated by development of Crohn's disease is rare. The presentation of symptomatic Crohn's disease during pregnancy was initially described in 1946. Crohn's disease has been described in a number of atypical locations and with development of unusual fistulas. The cases associated with pregnancy have in common a clinical picture of (1) delay in diagnosis, (2) frequent premature delivery, (3) surgical intervention during pregnancy, and (4) high fetal and maternal morbidity and mortality. To our knowledge, this case is the first to describe the radiologic findings of an enterouterine fistula in a case of Crohn's disease beginning during pregnancy.
Assuntos
Doença de Crohn/complicações , Fístula/etiologia , Doenças do Íleo/etiologia , Fístula Intestinal/etiologia , Complicações na Gravidez , Doenças Uterinas/etiologia , Adolescente , Feminino , Humanos , Recém-Nascido , GravidezRESUMO
Multiple myeloma is the most common primary malignant bone neoplasm in adults, primarily over the age of 40. The most common radiographic findings include osteopenia, lytic lesions, and pathologic fractures. Although marked bone repair and healing can occur following therapy, this is often, paradoxically, a poor prognostic indicator.
Assuntos
Mieloma Múltiplo/terapia , Terapia Combinada , Evolução Fatal , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/diagnóstico por imagem , Mieloma Múltiplo/mortalidade , Ossos Pélvicos/diagnóstico por imagem , Prognóstico , RadiografiaAssuntos
Osso e Ossos/diagnóstico por imagem , Coristoma/diagnóstico por imagem , Rim , Idoso , Humanos , Masculino , CintilografiaRESUMO
The purpose of this study was to describe the technique proposed to measure left ventricular ejection fraction (LVEF) with the impedance cardiogram and to compare these values with those measured by radionuclide angiocardiography. Characteristics (mean +/- SE) of the healthy control group were: age, 32 +/- 3 yr; weight, 75 +/- 6 kg; and height, 177 +/- 3 cm. Characteristics of the patient population of 46 men and 49 women were: age, 63 +/- 1 yr; weight 74 +/- 2 kg; and height, 170 +/- 1 cm. LVEF was measured by impedance (ZEF) and multiple-gated scans (MEF) while in the supine position. The control group ZEF averaged 72% (range 67% to 78%) and the MEF averaged 71% (range 65% to 77%). There were no differences between the average ZEF (56 +/- 1%) and MEF (53 +/- 2%) in the patients. Correlations, however, between ZEF and MEF were unacceptably low for the several clinical populations within this group (-0.17 to 0.16). Furthermore, MEF correlated well with regional wall motion (r = .84) while ZEF did not (r = .00). Subdividing the patients according to heart function as determined by regional wall motion failed to improve the correlation between MEF and ZEF. The use of a previously published regression equation to predict LVEF from the systolic time interval ratio of pre-ejection period/left ventricular ejection time derived from the impedance cardiogram also proved ineffective. These data suggest that the previously proposed analysis of the impedance cardiogram to measure LVEF should not be used to make a clinical diagnosis.