We report on the findings at color and power Doppler US in 2 cases of Krukenberg tumor. Power Doppler US may suggest a Krukenberg tumor when it shows a relatively prominent vascular signal along the wall of well-demarcated intramural cysts in a solid ovarian mass.
Ligands in coordination chemistry and homogeneous catalysis are traditionally “static” spectators that do not actively participate in the catalytic cycle. However, such classic systems do not provide additional “handles” that could facilitate or trigger alternative productive reaction pathways. Recent advances in the use of novel nitrogen‐centered pincer systems have unveiled interesting opportunities for cooperative catalysis. The chemistry of pyridine‐derived, neutral ligands is discussed, with a specific focus on their non‐innocent behavior and potential as facilitators for metal‐mediated organic transformations. This overview should provide inspiration and an incentive to incorporate non‐innocent ligands and their metal complexes within old and new homogeneously catalyzed reactions.
17th World Congress on Ultrasound in Obstetrics and GynecologyPoster abstracts routine ultrasound. A bilateral renal disease with oligohydramnios was diagnosed in her first pregnancy and the baby was stillborn with Potter sequence. In the actual pregnancy the ultrasound done at 26 + 4 weeks of gestation showed right pyelocalicial and proximal ureteral dilatation with narrowing. In the neonatal period a 3D scan with multiplanar views demonstrated a megaureter associated with ureteral valve and a distal ureteral stenosis. The diagnosis was confirmed via surgical exploration and histology. While rare this might be a cause of ureteral obstruction with progressive upper tract dilatation. We emphasize the value of multiplanar 3D which allowed a diagnosis that only few years ago was privative of excretory urography. P26.20 Seoul National University College of Medicine, Republic of KoreaUrethral duplication is very rare condition and a few prenatal cases were reported. We have experienced a case of anterior urethral duplication with hypospadia and bladder outlet obstruction detected on the prenatal ultrasound. A 36-year old pregnant woman underwent a targeted ultrasound exam due to dilatation of bilateral fetal renal pelves at 31-week gestation. Ultrasound exam revealed dilatation of bilateral renal pelvis and ureters. Periodic changes of renal pelvic and ureteral diameters suggested vesicoureteral reflux. The urinary bladder was dilated during more than two hours suggesting bladder outlet obstruction, but posterior urethral dilatation was not detected on the prenatal ultrasound. During the fetal urination, the urine flow through the anterior urethra was divided into upper and lower flows on the color Doppler ultrasound, suggesting anterior urethral duplication. Postnatal exam revealed two urethral orifices and duplicated anterior urethra. The upper urethral opening was normally located, but the lower opening was on the ventral surface. Bilateral renal pelvis dilatation and high grade vesicoureteral reflux due to posterior urethral valve were confirmed on the voiding cystourethrography. P26.21Multiple congenital anomalies syndrome with urorectal septum malformation, absent radii, cerebellar vermis aplasia: case report University of Cagliari, ItalyIn this report we present the case of a male fetus, son of healthy nonconsanguineous parents, diagnosed with an apparently unknown multiple congenital anomalies syndrome by 2D ultrasound prenatal examinations. At 15 weeks, a 2D ultrasound examination revealed a huge distended bladder and the deviation of both hands. It had not been performed any pregnancy exam, previously. Genetic counselling excluded familiarity for malformations or genetic diseases, as far as a maternal exposure to teratogens. The fetus had a normal male caryotype, investigated by GTG cytogenetic analysis on amniocytes. At 18 weeks, 2D ultrasound pointed out a distended bladder, hydronephrosis, dolichocephaly, cerebellar vermis hypoplasia, anhydramnios. The pregnancy was terminated. On autopsy the distended ...
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