RAVEGNANI , Marcello

Background: Moyamoya disease (MMD) is a cerebrovascular disorder characterized by the progressive occlusion of the supraclinoid internal carotid artery (ICA), resulting in the formation of an abnormal cerebral vascular network. When MMD occurs in association with an underlying medical condition, including some distinctive genetic disorders, it...

Moyamoya disease is a steno-occlusive cerebrovascular disease of unknown etiology involving the terminal portion of the internal carotid artery and the proximal portions of the anterior and middle cerebral arteries with associated collateral vascular network. When the vascular pattern is associated with a particular condition (e.g., Type 1...

Osteoblastoma is a rare bone tumour. It is occasionally associated with an aneurysmal bone cyst (ABC). Several treatment strategies can be adopted. We report a challenging case of an osteoblastoma associated with ABC of the lumbar spine in a 2-year-old boy. The pathogenesis and the critical management of the disease are discussed.

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Post-haemorrhagic ventricular dilatation (PHVD) remains a major cause of brain injury in preterm infants. Cerebrospinal fluid drainage is often needed to decrease dilatation and prevent further damage. Like most European neonatal intensive care units (NICUs), we treat infants once the ventricular index (VI) has crossed the 97th percentile (p97)...

Background: Since external ventricular drainage (EVD) related infections are usually due to skin flora, an extradural intra/extra-cranial accessory device, developed for pediatric patients under three years of age undergoing EVD positioning, is described. The aim of this paper is to provide technical description of this device, underlining the...

Purpose: The role of T2*-based MR imaging in intracranial germ cell tumors (GCTs) has not been fully elucidated. The aim of this study was to evaluate the susceptibility-weighted imaging (SWI) or T2* gradient echo (GRE) features of germinomas and non-germinomatous germ cell tumors (NGGCTs) in midline and off-midline locations. Methods: We...

Purpose To explore the relationships between clinical-radiological features and surgical outcomes in subjects with interhemispheric cysts (IHC) and corpus callosum anomalies. Methods We reviewed the clinico-radiological and neurosurgical data of 38 patients surgically treated with endoscopic fenestration, shunting, or combined approaches from...