Case Report: Lipoma of the Tuber Cinereum Mimicking a Pituitary Gland Abnormality in a Girl With Central Precocious Puberty.

Introduction: Magnetic Resonance Imaging (MRI) is the best approach to investigate the hypothalamic-pituitary region in children with central precocious puberty (CPP). Routine scanning is controversial in girls aged 6-8 year, due to the overwhelming prevalence of idiopathic forms and unrelated incidentalomas. Cerebral lipomas are rare and accidental findings, not usually expected in CPP.

Utility of vertebral biopsy before vertebroplasty in patients with diagnosis of vertebral compression fracture.

Purpose: To demonstrate the utility of a biopsy performed just before vertebroplasty in patients with diagnosis of vertebral compression fracture (VCF) and no history of neoplastic or hematologic diseases.

Background: Osteoporosis is the most frequent cause of vertebral compression fracture, with trauma and pathologic vertebral weakening being other common causes. Since secondary fractures at imaging investigation can present as simple compression fractures, it is important to identify an underlying pathology.

Coronary artery anatomy and variants.

Variants and congenital anomalies of the coronary arteries are usually asymptomatic, but may present with severe chest pain or cardiac arrest. The introduction of multidetector CT coronary angiography (MDCT-CA) allows the detection of significant coronary artery stenosis. Improved performance with isotropic spatial resolution and higher temporal resolution provides a valid alternative to conventional coronary angiography (CCA) in many patients.

Diagnostic accuracy in coronary stenosis: comparison between visual score and quantitative analysis (quantitative computed tomographic angiography) in coronary angiography by multidetector computed tomography-coronary angiography and quantitative analysis (quantitative coronary angiography) in conventional coronary angiography.

Background: Multidetector computed tomography-coronary angiography allows quantification of coronary stenosis with a high level of accuracy; however, the inherent inaccuracy of visual score still remains. Computed quantitative vessel analysis systems (quantitative computed tomographic angiography [QCTA]) aim to overcome this limitation. The aim of our study was to evaluate the accuracy of QCTA in comparison with quantitative coronary angiography (QCA) and visual score using the QCA.