Russian Journal of Pediatric Surgery, Anesthesia and Intensive CareRussian Journal of Pediatric Surgery, Anesthesia and Intensive Care2219-40612587-6554Eco-Vector93510.17816/psaic935Review (Book)Giant urinoma in a newborn boy with a posterior urethral valve: A сase report and reviewKagantsovIlya M.<p>Dr. Sci. (Med.), Chief Researcher</p>ilkagan@rambler.ruhttps://orcid.org/0000-0002-3957-1615ZadykyanSuren S.<p>Cand. Sci. (Med.)</p>mdoctor@inbox.ruhttps://orcid.org/0000-0001-5544-7713ZadykyanRobert S.<p>Pediatric Surgeon</p>robs90@inbox.ruhttps://orcid.org/0000-0002-5994-0537SvarichVyacheslav G.<p>Dr. Sci. (Med.), Professor</p>svarich61@mail.ruhttps://orcid.org/0000-0002-0126-3190BairovVladimir G.<p>Dr. Sci. (Med.), Professor</p>bairov_vg@almazovcentre.ruhttps://orcid.org/0000-0002-8446-830XSukhotskayaAnna A.<p>Cand. Sci. (Med.), Associate professor</p>sukhotskaya_aa@almazovcentre.ruhttps://orcid.org/0000-0002-8734-2227Institute of Perinatology and Pediatrics, Almazov National Medical Research CentrePitirim Sorokin Syktyvkar State UniversityCenter of Protection of Motherhood and ChildhoodRepublican Children’s Clinical Hospital3105202111177840403202125032021Copyright © 2021, Kagantsov I.M., Zadykyan S.S., Zadykyan R.S., Svarich V.G., Bairov V.G., Sukhotskaya A.A.2021<p>Posterior urethral valve is the most common cause of infravesical obstruction in male newborns. Spontaneous rupture of the urinary collecting system with urine extravasation is a rare complication in this group of children. We present a case of urinoma in a patient with a posterior urethral valve at 4 weeks of age with renal insufficiency. The transurethral destruction of the valve and evacuation of the urinoma contributed to the restoration of the urodynamics and recovery of renal function. Urinoma is a rare manifestation of this defect, and its significance for predicting the preservation of renal function has not been fully determined yet. Reports about the occurrence of urine extravasation in the posterior urethral valve and studying kidney function in the long-term period can clarify the significance of this spontaneous mechanism of urinary tract decompression.</p>urinomaurinary extravasationposterior urethral valvechildrenуриномаэкстравазация мочиклапан задней уретрыдети[Heikkilä J, Taskinen S, Rintala R. Urinomas associated with posterior urethral valves. J Urol. 2008;180(4):1476–1478. DOI: 10.1016/j.juro.2008.06.056][Wells JM, Mukerji S, Chandran H, et al. Urinomas protect renal function in posterior urethral valves a population based study. J Pediatr Surg. 2010;45(2):407–410. DOI: 10.1016/j.jpedsurg.2009.10.084][Bernardes LS, Salomon R, Aksnes G, et al. Ultrasound evaluation of prognosis in fetuses with posterior urethral valves. J Pediatr Surg. 2011;46(7):1412–1418. DOI: 10.1016/j.jpedsurg.2010.12.010][Dobrosel’sky MV, Chepurnoy GI, Sizonov VV. A rare anatomic variant of congenital urethral valve complicated by bilateral vesicoureteral reflux. State of the art. Russian Journal of Pediatric Surgery. 2014;18(5):41–44. (In Russ.)][Rittenberg MH, Hulbert WC, Snyder HM 3rd, Duckett JW. Protective factors in posterior urethral valves. J Urol. 1988;140(5):993–996. DOI: 10.1016/s0022-5347(17)41908-2][Gurskaya AS, Menovschikova LB, Levitskaya MV, et al. The diagnosis and treatment of neonates and infants with posterior urethral valves. Andrology and Genital Surgery. 2014;15(2):44–47. (In Russ.) DOI: 17650/2070-9781-2014-2-44-47][Olhova EB, Miseriya AA, Fomichev MIu, et al. Ultrasound diagnosis of complications obstruktivnyh uropathies newborn. Radiology Practice Journal. 2020;(4):20–41. (In Russ.)][Adorisio O, Silveri M, Colajacomo M, et al. The impact of perinatal urinoma formation on renal function: our experience and review of the literature. J Paediatr Child Health. 2011;47(4):217–222. DOI: 10.1111/j.1440-1754.2010.01927.x][Patil KK, Wilcox DT, Samuel M, et al. Management of urinary extravasation in 18 boys with posterior urethral valves. J Urol. 2003;169(4):1508–1511][Lundar L, Aksnes G, Morkrid L, Emblem R. Prenatal extravasation of urine seems to preserve renal function in boys with posterior urethral valves. J Pediatr Urol. 2019;15(3):241.e1–241.e7. DOI: 10.1016/j.jpurol.2019.02.010][Kiliś-Pstrusińska K, Pukajło-Marczyk A, Patkowski D, et al. Spontaneous rupture of kidney due to posterior urethral valve-diagnostic difficulties. Iran J Pediatr. 2013;23(3):360–362.]