RESUMO
The clinical, radiographic, and pathologic findings of 2 cases of malignant fibrous histiocytoma (MFH) of the renal capsule are reported and the 17 previous cases in the literature reviewed. Preoperative differentiation from renal adenocarcinoma was precluded by the overlap in clinical, laboratory, and radiologic findings, although MFH usually presented with a normal urine analysis and less parenchymal involvement on imaging studies. Pathologic differential diagnosis and therapeutic approaches are presented.
Assuntos
Histiocitoma Fibroso Benigno/diagnóstico , Neoplasias Renais/diagnóstico , Feminino , Histiocitoma Fibroso Benigno/patologia , Humanos , Neoplasias Renais/patologia , Pessoa de Meia-IdadeRESUMO
In this article computergraphics performance parameters are defined and their relationships to cost-effectiveness are examined. Variables in the quality of the output, the speed of the system, and the range of capabilities are described. Factors in projecting productivity, costs, and cost-effectiveness are discussed.
Assuntos
Computadores/economia , Apresentação de Dados , Custos e Análise de Custo , Estados UnidosRESUMO
As part of an initial study we have attempted to ascertain whether lactating women exhibit high, clearly measurable levels of immunoreactive calcitonin (CT). Plasma levels of CT were measured in women who had been lactating for either a short time (less than 4 months) or a very long time (17-73 months). In 2 of 18 women lactating for only a short time CT levels were high and easily measured (greater than 200 pg/ml) while, in contrast, CT levels were undetectable (less than 60 pg/ml) in all of 16 nonlactating control subjects. In all six of the women studied who had been lactating for a long time, measurable levels of CT were observed, although provocative testing of women with measurable plasma CT using iv pentagastrin and calcium did not show a consistent pattern of CT secretory response. Thus, out of the total of 24 lactating women studied, one third were found to have measurable plasma levels of CT. The findings agree with studies in experimental animals which have indicated hypercalcitoninemia during lactation, but the factors responsible for the elevated CT levels during lactation remain to be elucidated.
Assuntos
Calcitonina/sangue , Lactação , Feminino , Humanos , Pentagastrina , Gravidez , Radioimunoensaio , Fatores de TempoAssuntos
Calcitonina/metabolismo , Glândula Tireoide/metabolismo , Animais , Animais Recém-Nascidos , Bucladesina/farmacologia , Cálcio/farmacologia , Temperatura Baixa , Cianetos/farmacologia , Cicloeximida/farmacologia , Dactinomicina/farmacologia , Relação Dose-Resposta a Droga , Iodoacetatos/farmacologia , Técnicas de Cultura de Órgãos , Ratos , Glândula Tireoide/efeitos dos fármacos , Fatores de TempoRESUMO
In a case of advanced abdominal pregnancy, the placenta was left in situ following operative extraction of the fetus. Ultrasound and angiographic studies provided assistance in planning subsequent surgery. Both types of examination are indicated in such cases.
