Uretero-pelvic junction obstruction in children: Is vascular hitch an effective and safe solutions in very long term outcome? Report of 25 years follow-up.

Vascular (VH) according to Hellstrom-Chapman technique is considered a safe and effective alternative approach to pure extrinsic Ureteropelvic Junction Obstruction (UPJO) with good results in short and medium term, but few data are available on long and verylong term outcomes. Our aim is to evaluate VH long and very-long term outcomes in patients treated in pediatric age focusing on relapse, development of hypertension and/or inferior polar kidney hypotrophy during puberty and adulthood. From 1990 to 2015 in our Department 76 children were treated by open or laparoscopic VH for pure extrinsic-UPJO.

Testicular torsion during the COVID-19 pandemic: Results of a multicenter study in northern Italy.

Introduction: The literature reported an increased avoidance of the Emergency Department (ED) during COrona VIrus Disease 19 (COVID-19) pandemic, causing a subsequent increase of morbidity and mortality for acute conditions. Testicular torsion is a surgical emergency, which can lead to the loss of the affected testicle if a delayed treatment occurs. As testicular loss is time-related, outcome was hypothesized to be negatively affected by the pandemic.

Epithelial thymic tumours in paediatric age: a report from the TREP project.

Background: Thymic epithelial tumours (thymoma and carcinoma) are exceptionally rare in children. We describe a national multicentre series with a view to illustrating their clinical behaviour and the results of treatment.

Methods: From January 2000 all patients under 18 years of age diagnosed with "rare paediatric tumours" were centrally registered by the Italian centres participating in the TREP project (Tumori Rari in Età Pediatrica [Rare Tumours in Paediatric Age]).

Intraoperative examination (IOE) in pediatric extracranial tumors.

Background And Objectives: Intraoperative evaluation of surgical specimens by frozen sections (IOE) is required to distinguish benign and malignant lesions, assess surgical margins, and determine sample adequacy of biopsies. In the last years, it has been used also for therapeutic decisions, particularly in children, who may need other ancillary procedures, in case of malignancies. Our purpose was the evaluation of diagnostic accuracy, limits, and different role of IOE in pediatric pathology.

Complete second look operation and radiotherapy in locally advanced non-alveolar rhabdomyosarcoma in children: A report from the AIEOP soft tissue sarcoma committee.

Background: To evaluate the effect of radiotherapy (RT) in association with complete second look operation, histologically confirmed, on outcome of patients with IRS Gr.III non-alveolar RMS.

Procedure: We analyzed data from 39 patients (age: 0.

HLA class I antigen and HLA-A, -B, and -C haplotype frequencies in Uruguayans.

HLA class I antigens were determined for 959 unrelated Uruguayans. The predominant HLA alleles were A2, Cw4, and B35, and the most frequently observed two-loci haplotypes were A2-B44 and B35-Cw4. The most frequent three-loci HLA haplotype was A2-Cw5-B44.

Fibrous hamartoma of infancy: an Italian multi-institutional experience.

Background: Fibrous hamartoma (FH) of infancy is a benign mesenchymal tumor, occurring as a superficial mass. Complete excision is curative.

Objective And Methods: The clinical features and treatment results of 18 children with FH are described.