Case presentation: villous tumor of rectum in a child

Introduction: The rectum villous tumour is an uncommon pathology in paediatrics, it represents 1% of all the children’s malignant tumours.Case Presentation: An eleven-year-old girl presented a rectal adenocarcinoma arising from a villous tumour. The aim of this study is to overview of the literature, asses the frequency of rectum villous tumours, specify the value of the clinical examination, of the radiologic findings in the assessment of the loco-regional extension of villous tumours and rectum adenocarcinoma and finally to discuss the treatment modalities.Conclusion: The rectum villous tumour symptomatology in children is not very specific. Therefore, a good knowledge of its clinical presentation and the predisposing pathological situations can improve the prognosis of this rare disease

Promising proteins detected by Western blot from Echinococcus granulosus protoscoleces for predicting early post-surgical outcomes in CE-affected Tunisian children.

BACKGROUND Cystic echinococcosis (CE) affects predominantly young patients in highly endemic areas. Improved serological methods are needed for the follow-up of CE cases, especially given the high rates of post-surgical relapse that require detection as soon as possible. METHODS We designed a study to investigate the value of antigenic proteins extracted from Echinococcus granulosus (E. granulosus) protoscoleces, and of recombinant B2t and 2B2t proteins, for assessing the efficacy of surgical treatment carried out on CE-affected children. This study was performed on 278 plasma samples collected from 59 Tunisian children surgically treated for CE and monitored for 3 years post-surgery. The patients were classified according to post-surgical outcomes into a "non-relapsed" (NRCE) and a "relapsed" (RCE) group. We performed in-house ELISAs to measure anti-B2t and anti-2B2t IgG and immunoblotting for the detection of IgG against SDS-PAGE-resolved E. granulosus protoscoleces-specific antigens. The Wilcoxon test was applied to assess anti-B2t and anti-2B2t IgG levels. We applied the Cochran Q test to compare the distribution of immunoblotting antigenic bands between 1-month and 1-year post-surgery. RESULTS The probability of being "relapse-free" when a decrease in antibody titers occurred between 1 month and 1 year post-surgery was 81% and 75%, respectively, for anti-B2t and anti-2B2t IgG. We identified five protoscolex protein bands of 20, 26/27, 30, 40 and 46 kDa as highly immunoreactive by immunoblot for both RCE and NRCE patients at 1 month post-surgery, and significantly lower immunoreactivity after 1 year (p < 10-4) for NRCE compared to RCE patients. The proteins at 26/27 and 40 kDa displayed the best performance in predicting the outcome, with an 84% probability of being relapse-free when the reactivity against the 40 kDa antigen, the doublet at 26/27 kDa, or both was absent or disappeared between 1 month and 1 year post-surgery, and a 93% probability of being relapsed when both bands remained reactive or increased in intensity between the two time points. CONCLUSIONS The B2t protein could be useful for the prediction of CE early post-surgical outcomes. The proteins of E. granulosus protoscoleces, especially the doublet P26/27 and P40, could be promising predictive biomarkers for the post-surgical follow-up of CE cases as well

Management of double aortic arch in children

Introduction: Double aortic arch (DAA) is a rare congenital malformation. Strategies for diagnosis and treatment are different. Reports of thoracoscopic treatment of DAA are rare. We report a description of our diagnostic and therapeutic approach and evaluate outcomes.Material &amp; Methods: We reviewed charts of infants with double aortic arch who were hospitalized in our department from 2008 to 2014. Age at symptom onset, clinical presentation, diagnostic modality, operative details and post operative outcomes were retrieved. Results: We identified 7 patients presenting at a median age of 11,8 months (range: 2 months-27 months) and median weight of 10kg. Respiratory symptoms were present in all cases. Difficulties in feedings were present in 3 cases. Chest radiography, oesophagogram and Computed Tomography (CT) with three-dimentional (3D) reconstructions were performed for all patients. One patient had laryngo tracheoscopy and 3 patients echocardiography. The dominant branch was the right one in all cases. Associated cardiac anomaly was found in 1 case. Operative approach was thoracotomy in 3 cases and thoracoscopic video assisted surgery (VATS) in 4 cases. Median operative time was 132 min. Only one patient required conversion. Median hospital stay was 4,1 days.Conclusion: Double aortic arch is a rare malformation which can cause persistent non specific respiratory symptoms in infants. The use of 3D-CT scan reconstruction facilitates diagnosis and the operative approach. Thoracoscopy and thoracotomy are effective procedures even for patients with low body weight. The operative time seems similar for both approaches. Thoracoscopy offers less post-operative analgesia requirement, shorter hospital stay and good cosmetic results