Pyle's disease is an extremely rare skeletal disorder characterized by a benign course and an autosomal recessive genetic pattern of inheritance. Its causal mutation is still unknown. In the medical literature, fewer than 30 cases have been described to date. We report the case of two female siblings, daughters of consanguineous parents, referred to the radiology department complaining of genu ...

Fibrous dysplasia is a benign fibroosseous bone dysplasia that can involve single (monostotic) or multiple (polyostotic) bones. Monostotic form is more frequent in the jaws. It is termed as craniofacial fibrous dysplasia, when it involves, though rarely, adjacent craniofacial bones. A 16-year-old girl consulted for a painless swelling in the right posterior mandible for two years. Panoramic rad...

About one million head injured patients attend accident and emergency departments each yearroughly 10% of all attenders.' Most are fully alert and orientated on presentation with no abnormal neurological signs and their injuries may therefore be classified as mild.2 However, some patients presenting in this way have sustained a skull fracture a major risk factor for extradural haematoma.3 Guide...

Observations based on a high yield indication list (HYL) revealed that 80% of posttraumatic skull radiographs requested by physicians were not indicated. To investigate this possible overuse of radiography, 15 resident physicians who had used the HYL in a university emergency room were interviewed. The interviews included a questionnaire, case simulations, and discussion of actual head trauma p...

BACKGROUND There is no clear consensus regarding radiologic evaluation of head trauma in young children without traumatic brain injury. We conducted a study to develop and validate a clinical decision rule to identify skull fracture in young children with head trauma and no immediate need for head tomography. METHODS We performed a prospective cohort study in 3 tertiary care emergency departm...

The anterior/posterior (AP) and dorsal/ventral positions of 3 subcortical structures, the amygdala, the mamillary bodies, and the anterior commissure, were estimated with respect to the skull in a series of cynomolgus monkeys (Macaca fascicularis). The distance from the external auditory meatus, from which stereotaxic coordinates are typically derived, to these structures was found to be highly...

Digital radiography has gained immense popularity in dentistry today in spite of the early difficulty for the profession to embrace the technology. The transition from film to digital has been happening at a faster pace in the fields of Orthodontics, Oral Surgery, Endodontics, Periodontics, and other specialties where the radiographic images (periapical, bitewing, panoramic, cephalometric, and ...

Introduction: Paediatric patients deserve special attention because of the higher radiation risks compared with adults. The main purpose of this study is to determine patient dose and diagnostic reference level for Paediatric through Entrance Surface Dose (ESD) calculations in common X-ray examination and to establish Paediatric national DRLs in digital radiography in Iran. <...

OBJECTIVE To document the epidemiologic and clinical features of benign skull lesions. DESIGN A case series. SETTING St. Michael's Hospital, a tertiary care facility affiliated with the University of Toronto. PATIENTS Thirty-one patients who had a neurosurgical consultation and were discharged from hospital after excision of a benign skull lesion during a 10-year period. MAIN OUTCOME ME...

OBJECTIVE This study aimed to define a spatial position of the cochlea in the skull based on anatomical studies and to design an appropriate method of skull radiography for demonstration of the multichannel intracochlear electrode array and the structures of the inner ear, for use in evaluating the electrode position and its related pitch perception. BACKGROUND The conventional skull radiogra...