RESUMO
An uncommon sonographic pattern was observed in 2 dermoid cysts. An echogenic upper and an echo-free dependent component were separated by a horizontal delineation, an observation that could be reproduced in a laboratory model. We believe that this finding is pathognomonic for a dermoid cyst.
Assuntos
Tecido Adiposo/diagnóstico por imagem , Líquidos Corporais/diagnóstico por imagem , Cisto Dermoide/diagnóstico por imagem , Neoplasias Ovarianas/diagnóstico por imagem , Adulto , Feminino , Humanos , UltrassonografiaRESUMO
The relation between pancreatic tissue fluid pressure and pain, morphology, and function was studied in a cross-sectional investigation. Pressure measurements were performed by percutaneous fine-needle puncture. Thirty-nine patients with chronic pancreatitis were included, 25 with pain and 14 without pain. The pressure was higher in patients with pain than in patients without pain (p = 0.000001), and this was significantly related to a pain score from a visual analogue scale (p less than 0.001). Patients with pancreatic pseudocysts had both higher pressure and higher pain score than patients without (p = 0.004 and p = 0.0003, respectively). The pressure was significantly related (inversely) to pancreatic duct diameter only in the group of 19 patients with earlier pancreatic surgery (R = -0.57, p = 0.02). The pressure was not related to functional factors or the presence of pancreatic calcifications. In conclusion, pancreatic tissue fluid pressure is a valuable indicator of pain in chronic pancreatitis.
Assuntos
Dor Abdominal/etiologia , Pâncreas/fisiopatologia , Pancreatite/fisiopatologia , Biópsia por Agulha , Doença Crônica , Estudos Transversais , Feminino , Humanos , Masculino , Medição da Dor , Pseudocisto Pancreático/complicações , Pseudocisto Pancreático/patologia , Pseudocisto Pancreático/fisiopatologia , Pancreatite/complicações , Pancreatite/patologia , PressãoRESUMO
A comparison has been made of contrast medium reactions in contrast-enhanced CT of the cerebrum using Urografin-meglumin and a new non-ionic, low-osmolality radiologic contrast medium, Ultravist. The number of contrast medium reactions was significantly less with Ultravist, but many mild reactions were observed with both contrast media. Regardless of the contrast used, the incidence of contrast reactions was independent of the CT diagnoses.
