Stridor caused by duplication cyst in a female infant and temporary vocal cord paralysis. A case report.

Introduction And Importance: Congenital hypopharynx duplication cysts are a medical rarity; nevertheless, they offer an important differential diagnosis in neonatal dyspnea or feeding problems.

Case Report: Herein, we describe a case of delayed diagnosis but successful surgical removal of a large congenital hypopharynx cyst in a 4-month-old infant presenting with stridor.

Clinical Discussion: Early and proper diagnosis and surgical handling of hypopharynx cyst can help to achieve the best prognosis and outcome.

The potential role of modern US in the follow-up of patients with retroperitoneal fibrosis.

Purpose: We aimed to evaluate a standardized ultrasonography (US) algorithm for the visualization of pathologic para-aortic tissue in retroperitoneal fibrosis (RPF).

Materials And Methods: Thirty-five patients with lumbar RPF of typical extent, as determined by abdominal magnetic resonance imaging, were included. Examinations were conducted using standardized abdominal US with axial sections obtained at the levels of the renal arteries, aortic bifurcation, and both common iliac arteries.

An aid to decision-making in therapy of retroperitoneal fibrosis: dynamic enhancement analysis of gadolinium MRI.

Background: Idiopathic retroperitoneal fibrosis (IRF) as an uncommon cause of obstructive uropathy is often primarily treated medically by the attending urologist. We evaluated dynamic enhancement analysis (DEA) as a possible predictor of response to medical treatment and for treatment monitoring.

Methods: From 2007, 24 patients with fibrosis were assessed by magnetic resonance imaging (MRI) with DEA.

[Infrarenal aortic ectasia in retroperitoneal fibrosis (RPF)].

We analysed the infrarenal aortic morphology by abdominal MR-examinations of 47 RPF patients compared to a control group. A significant larger aortic calibre and higher rates of infrarenal dilatation in male RPF patients were observed. The larger aortic diameter in male RPF patients may be due to periaortic inflammation with resulting aortic ectasia and supports the classification of RPF into the spectrum of chronic periaortitis.

Magnetic resonance imaging of the brain in children with headache: the clinical relevance with modern acquisition techniques.

The aim of this study was to evaluate the frequency of abnormal findings in magnetic resonance imaging (MRI) in children with headache, the clinical relevance of these findings, and whether more sophisticated technologies also result in more relevant abnormal findings. The MRIs of 1004 children with age ranging from 1 to 17 years were retrospectively analyzed. Children who were investigated with established sequences (n = 419) were compared with those examined with state-of-the-art MRI acquisition technology (n = 585).

Workflow optimization in vertebrobasilar occlusion.

Objective: In vertebrobasilar occlusion, rapid recanalization is the only substantial means to improve the prognosis. We introduced a standard operating procedure (SOP) for interventional therapy to analyze the effects on interdisciplinary time management.

Methods: Intrahospital time periods between hospital admission and neuroradiological intervention were retrospectively analyzed, together with the patients' outcome, before (n=18) and after (n=20) implementation of the SOP.

Treatment for acetabular dysplasia using the uncemented RM acetabular component - a 20 year follow-up.

Our study reports a sub-group of patients with developmental dysplasia from a previously published larger series, with particular emphasis on the use of the uncemented RM acetabular component. We evaluated the long term results of 93 consecutive uncemented THAs in 80 patients using the titanium-coated RM acetabular component and the CLS femoral component in a prospective study. Eighteen hips in 16 patients had osteoarthritis secondary to developmental dysplasia of the hip.

Endovascular treatment of dysfunctional hemodialysis catheters.

Hemodialysis-catheter dysfunction is a common clinical condition in nephrology. Like other central venous devices, hemodialysis-catheters show a disposition for partial or complete thrombotic obstruction and fibrin sleeve formation. Thrombolytic infusion is recommended as therapy of first choice.

Evaluation of a resorbable, in situ setting bone substitute in a sheep model.

The gold standard for bone substitution is the autologous bone graft, but because of its limited supply and the associated morbidity, the search for synthetic alternatives is necessary. A new in situ setting tricalcium phosphate cement was implanted in a trepanation defect (9.4 mm diameter, 10 mm depth) in the distal femoral epiphysis of sheep.

Pulmonary embolism: comparison of angiography with spiral computed tomography, magnetic resonance angiography, and real-time magnetic resonance imaging.

In the last decade, spiral computed tomography (CT) and magnetic resonance (MR) angiography (MRA) have become a viable alternative to conventional angiography in the diagnosis of acute pulmonary embolism. However, patients with dyspnea are often unable to hold their breath for a longer time and thus image degradation is frequently observed. Consequently, an imaging sequence that allows free breathing is desirable.