2006 - UZ Leuven

materials, although it was architecturally more organised in thecollagen products.Conclusion: Pelvisoft has a lesser tensiometric resistance thanPelvicol on the short term, but not at 90 d, at what time all materialswere equally strong. Pelvitex has a slightly more attenuated acuteinflammatory reaction, with fewer adhesions than Vypro II. It didneither shrink. Vypro II induces most adhesions, shrinks by one fifthand induces the strongest acute inflammation.LERUT E., ROSKAMS T., JONIAU S., OYEN R., ACHTEN R., VANPOPPEL H., DEBIEC-RYCHTER M.: Metanephric adenoma duringpregnancy: clinical presentation, histology, and cytogenetics. HumanPathol., 2006; 37(9): 1227-1232.Metanephric adenoma is a rare benign tumor of the kidney. It isconsidered to be derived from embryonic renal tissue and to be thebenign counterpart of the Wilms tumor. Although its imaging findingsand immunohistochemistry are nonspecific, it has a typicalmicroscopic morphology. We describe a case of a 24-year-oldprimigravida who presented in the 28th week of pregnancy with lowerback pain, fever, malaise, and anemia. At renal ultrasonography andmagnetic resonance imaging, a hemorrhagic tumor of 10 cm indiameter originating from the right kidney was seen. Based on theimaging findings, the diagnosis of a cystic renal cell carcinoma withrecent hemorrhage was suggested, and a radical nephrectomy wasperformed. Pathologic examination concluded to a metanephricadenoma. The further pregnancy went on well. The karyotype of thetumor was 46,XX,t(1;22)(q22;q13),t(15;16)(q21;p13). To ourknowledge, this is the first report on these chromosomal abnormalitiesin metanephric adenoma.MALKOWICZ S.B., VAN POPPEL H., MICKISCH G., PANSADORA V.,THOROFF J., SOLOWAY M., CHANG S., BENSON M., FUKUI I.: Muscleinvasiveurothelial carcinoma of the bladder. In: Bladder Tumors. Editors:Soloway M., Carmack A., Khoury S., 2006: 221-237.Urothelial (transitional cell) carcinoma of the bladder is a significantneoplasm with over 55.000 new cases and 12.000 cancer-relateddeaths per year in the United States. It is the 5 th most common cancerin the USA and the 4 th leading cause of cancer deaths. The majority ofthese deaths are due to the effects of muscle-invasive disease, whichaccount for approximately one-third of the novo cases and are derivedfrom about 10% to 15% of preexisting cases of superficial disease.149