[Current trend in the diagnosis and treatment of primary non refluxing megaureter].

Background: The terms megaureter or hydroureteronephrosis are non-specific because indicate various pathologic entities recognise different causes (obstruction, reflux, obstruction-reflux, primary and secondary). An undeveloped renal function in neonatal period makes more difficult the therapeutic approach. Actually the problem is to find the indicators that consent us the individualization of patients more suitable for nonoperative management.

[Transanal endorectal pull-through with or without laparoscopic assistance? Development of an experimental model].

The transanal approach is a relatively new technique for surgery of Hirschsprung's disease. The purpose of this experimental study was to evaluate and compare the transanal endorectal pull-through when it takes place with laparoscopic assistance, according to Soave-Georgeson procedure and without laparoscopic assistance. We used two separated groups of animals.

Pilomatricoma in childhood: a retrospective study from three European paediatric centres.

Unlabelled: Pilomatricoma is characterised as a common, slowly growing benign cutaneous tumour that appears generally within the first decades of life. The clinical diagnosis is frequently missed, especially by the paediatrician unfamiliar with these tumours. We present the experience gained in three European tertiary care paediatric centres with the treatment of pilomatricoma and also current data on the aetiology, clinical presentation and management.

Deep venous thrombosis in a child associated with an abnormal inferior vena cava.

Congenital anomalies of the inferior vena cava (IVC), such as absence or atresia, although well documented, are uncommon and result from aberrant development during embryogenesis. Absence or atresia of the IVC is usually discovered accidentally. Patients are typically asymptomatic of the condition itself.

Acute appendicitis in preschool-age children.

Unlabelled: During the last 11 years, 122 children aged less than 5 years underwent appendectomy with a preoperative diagnosis of acute appendicitis. At surgery, 29 children (24%) presented with acute suppurative appendicitis, 64 children (52%) perforated appendices and 26 children (21%) with appendiceal abscess. In three cases (2%) there was no acute intra-abdominal process.