Prehepatic portal hypertension with aneurysm of the portal vein: unusual but treatable malformative pattern.

Introduction: Portal vein aneurysms (PVAs) are usually located at the vein trunk or at its bifurcation, rarely intra-hepatic, or at the umbilical portion. Etiology remains unclear.

Methods: Three children with PVA were identified over a 5-year period.

Role of three-phase bone scintigraphy in paediatric osteoid osteoma eligible for radiofrequency ablation.

Objective: The objective of the study was to underline the importance of three-phase bone scintigraphy at the time of diagnosis in children with suspected osteoid osteoma (OO) who are eligible for radiofrequency ablation.

Methods: Fifty-three patients (13 girls; mean age 7.2 years, 20% younger than 10 years of age) who underwent bone scintigraphy for suspected OO between 2005 and 2010 were included in the study, of whom 46 underwent a radiography at diagnosis.

Selective arterial embolization of giant renal tuberous sclerosis.

Different minimally invasive methods have been proposed to treat renal manifestation of tuberous sclerosis complex (TSC), in order to preserve kidney parenchyma and avoid nephrectomy. The case of a boy with bleeding giant angiomyolipoma treated by selective arterial embolization is discussed. The extensive renal lesions resulted significantly decreased, with resolution of arterial hypertension and abdominal symptoms.

Congenital intrahepatic portohepatic shunt managed by interventional radiologic occlusion: a case report and literature review.

Congenital intrahepatic portosystemic shunts are rare hepatic vascular anomalies that often lead to severe secondary conditions. A 6-year-old boy was referred for assessment of severe hypoxia, and a large liver mass was diagnosed with such a malformation and was managed by direct closure of the venous fistula by interventional radiology. Follow-up assessment shows normalization of the respiratory condition and a progressive reduction of the vascular liver lesion.

Particular imaging features and customized thermal ablation treatment for intramedullary osteoid osteoma in pediatric patients.

Objective: To report on the particular imaging features and high success rate of cold mode radio-frequency thermal ablation (RFTA) as the treatment of choice for intramedullary osteoid osteoma.

Materials And Methods: The study population consisted of 51 patients (39 males, 12 females; mean age 7.2 years; 11 patients under 6 years of age, including 7 males and 4 females) who underwent RFTA for osteoid osteoma and were retrospectively observed.

Radiofrequency thermoablation in chest wall mesenchymal hamartoma of an infant.

We report on an infant presenting with a chondroid hamartoma managed with a combined conservative surgical treatment and radiofrequency thermoablation.

Blind and ultrasound-guided percutaneous liver biopsy in children.

Background: Percutaneous biopsy of the liver is the most commonly used procedure to obtain tissue for histopathological assessment of liver disease. Although, intuitively, image-guided liver biopsy might be expected to reduce the risk of bleeding, haematoma caused by a penetrating injury of a branch of the hepatic artery or portal vein, and puncture of the gallbladder, no trial has been large enough to show reduced mortality or morbidity with US guidance, and the mechanisms by which the use of US can reduce the risk of bleeding remain speculative.

Objective: To compare the mortality and morbidity of blind liver biopsy with that of US-guided liver biopsy.

Aneurysmal bone cysts: treatment with direct percutaneous Ethibloc injection: long-term results.

Purpose: To assess the efficacy and long-term results of Ethibloc treatment in aneurysmal bone cysts (ABC).

Methods: Thirteen patients with ABC were treated with direct percutaneous Ethibloc injection. Four patients had only one injection and the other nine patients from two to four injections.