A rare case of right-sided varicocele in right renal tumor in the absence of venous thrombosis and IVC compression
AFRICAN JOURNAL OF UROLOGY
Authors: Adhikari, Priyabrata; Neeli, Siddalingeshwar, I; Mohan, Shyam
Abstract
Background The presence of unilateral right-sided varicocele hints at a serious retroperitoneal disease such as renal cell neoplasm. Such tumors are usually associated with a thrombus in renal vein or spermatic vein. We report a rare presentation of right-sided renal tumor causing right-sided varicocele in the absence of thrombus in renal vein and spermatic vein but due to an anomalous vein draining from the tumor into the spermatic vein as demonstrated by computed tomography angiogram. Case presentation A 54-yr-old hypertensive male presented with unilateral grade 3 right-sided varicocele and no other signs and symptoms. Ultrasound examination of his abdomen showed the presence of a mass lesion in the lower pole of right kidney. Computed tomography confirmed the presence of right renal mass, absence of thrombus in right renal vein or inferior vena cava. The angiographic phase of CT scan showed an anomalous vein from the tumor draining into the pampiniform plexus causing varicocele. Conclusion The presence of right-sided varicocele should raise a suspicion hidden serious pathological retroperitoneal condition, renal malignancy in particular, and should prompt the treating physician to carry out imaging studies of the retroperitoneum and careful study of the angiographic phase of the CT scan can ascertain the pathogenesis of the varicocele.
Photochemical deposition of palladium nanoparticles on TiO(2 )nanoparticles and their application for electrocatalytic measurement of nitrate ions in potato, onion and cabbage using bipolar electrochemical method
MEASUREMENT
Authors: Naser-Sadrabadi, Abolfazl; Zare, Hamid R.; Benvidi, Ali
Abstract
A nanoparticle modified recordable digital versatile disc (DVD) blade was used as the bipolar electrode. The cathodic pole of the DVD blade was modified by TiO2 nanoparticles. Then, Pd nanoparticles were deposited at the TiO(2)NPs/DVD surface by photochemical method. In the proposed setup, when the required potential was applied by using a direct power supply, the nitrate ions are reduced electrocatalytic at the PdNPs/TiO(2)NPs cathodic pole and the oxidation reaction of the silver layer is performed at the anode pole of the bipolar electrode, simultaneously. The oxidation process led to the dissolution of the silver layer. The results show that the dissolution length of the silver layer on the surface of the anodic pole at constant interval time is proportional to the nitrate ion concentration in the analytical solution. Finally, this method was used to measure the concentration of nitrate ions in the various real samples and obtained satisfactory results. (C) 2020 Elsevier Ltd. All rights reserved.