[Peritoneal XXXX as a complication of cerebrospinal fluid shunt. Report of 3 cases and contribution for diagnosis].

@entity1 @entity308 @entity158 @entity9007 @entity490 @entity2841
Three cases of peritoneal @entity9007 are reported with guidelines for the diagnosis of this type of complication. The authors point out the value of the following signs: 1--increase of ventricular pressure with worsening of the clinical picture; 2--localized @entity158 in the abdomen; 3--difficulty to depress the capsule; 4--occurrence of subcutaneous collection of @entity2841 around the pathway of the catheter. In some occasions it is possible to palpate the mass of the pseudocyst. The presence of subcutaneous collection of @entity2841 around the pathway of the catheter is an important warning sign of peritoneal pseudocyst and must be differentiated from that originated by the disconnection between the capsule and the catheter. In this condition however, the accumulation of liquid begins in the cervical region. Also in this case the capsule @entity308 easily. The most precise diagnosis is achieved by X-Ray. The authors describe a method that consists in introducing a needle through the capsule and injecting 8cc of Dimer-X contrast. The catheter and the cavity of pseudo-cyst appear contrasted in the X-Ray film, establishing the definitive diagnosis. The authors discuss the physiopathology of @entity2841 accumulation; once the pseudocyst is formed, the intracranial pressure increases, and the fontanelle bulges, this leads to repeated pumping by the relatives and subsequent rising of pressure within the pseudo-cyst. At this point the @entity1 refers @entity158 at the location of the pseudo-cyst and the @entity2841 tends to lead around catheter. In babies the @entity490 leads to crying, thus increasing once more the intra-cystic pressure which favors the leakage of @entity2841 from the pseudo-cyst around the catheter.
