LEARNING OBJECTIVES: 1.To present, illustrate and classify the main CT aspects of the most common urological complications after renal transplant: fluid collections. 2. To assess the importance of CT evaluation for guiding the therapeutic approach and for follow-up after renal transplant.

Renal transplant (RT) represents the elective treatment for patients with end-stage renal disease. Complications after RT. The most common urolgical complications afterRT are perigraft fluid collections, occuring in 2.5%–30% of recipients, depending on the transplant center and the surgical approach, leading to a number of further serious complications1,2. These collections can be: perigraft hematomas (Fig. 1), perigraft lymphoceles ( Fig. 2 ), perigraft urinomas ( Fig. 3 ), abscesses. More information can be found in Table 1 . The most valuable tool in diagnosing, monitoring...

This paper presents the CT findings of perigraft fluid collections after RT, emphasizing the importance of the imaging investigation in diagnosing and choosing the best therapy. We have designed a 15-year retrospective study including 93 patients who developed perigraft fluid collections after a kidney transplant. The results revealed that 31% of the patients developed hematomas, 55% lymphoceles, 10% urinomas and 4% abscesses ( Fig. 4 ). Comparable to published data3, our study revealed that lymphoceles are the most frequent perigraft collections, having the best prognosis....

CT is the method of choice for rapid and precise description of perirenal graft fluid collections, offering the clinician valuable information and assessing the best approach for further interventions. The structured CT report must include: Renal graft viability (morpho-functional data) Permeability of the renal graft pedicle Dimensions, locations and featuresof perirenal graft collections Other incidental lesions

I. A. Cristache; Bucharest/RO - Author at Fundeni Clinical Institute - Speaker at Fundeni Clinical Institute M. Buzoianu; Bucharest/RO - Author at Fundeni Clinical Institute I. G. Lupescu; Bucharest/RO - Author at Fundeni Clinical Institute C. M. Grasu; Bucharest/RO - Author at Fundeni Clinical Institute R. Capsa; Bucharest/RO - Author at Fundeni Clinical Institute Nothing to declare UMPh "Carol Davila", Bucharest, Romania Fundeni Clinical Institute, Radiology, Medical Imaging and Interventional Radiology Department mail: [email protected]

1Krajewski W, Dembowski J, Kołodziej A, et al. Urological complications after renal transplantation – a single centre experience. Cent European J Urol. 2016; 69: 306-311. 2Guerrero-Ramos F, Cavero-Escribano T, Rodríguez-Antolín A, Andrés-Belmonte A, Passas-Martínez J, Tejido-Sánchez Á. Perigraft fluid collections after kidney transplantation: Does the type of donor (uncontrolled donation after circulatory death vs. donation after brain death) have a role? Cent European J Urol. 2017; 70: 439-444. 3Inci MF, Ozkan F, See TC, Tatli S. Renal transplant complications: Diagnostic and therapeutic role of radiology....