Publications by authors named "Ronald Swanger"

Interpretation of globe imaging after ophthalmologic surgical intervention, just like postoperative imaging in any location, can create a diagnostic dilemma if the radiologist is not familiar with the type of surgery performed and the nature and location of any implanted devices. Certain implants and devices may create artifacts on computed tomography or magnetic resonance imaging, and some contain ferromagnetic components that may be damaged if inadvertently placed in the magnetic resonance imaging. We review several common ocular surgical procedures, as well as a few orbital surgical procedures and discuss many implants and devices and their appearance on cross-sectional imaging.

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In the United States, it is estimated that 3% of all emergency room visits are the result of eye injury, with many seen in combination with other orbital injuries. These often result from motor vehicle accidents and sports-related injuries. Clinical ophthalmologic examination is the key to rapid and accurate diagnosis of most ocular injuries.

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Carpal dislocation is an uncommon event. We present a 4-year-old male child who had the clinical appearance of a Madelung's deformity; however, he failed to fulfill the radiological criteria for a Madelung's deformity. The carpal bones had not yet ossified making it difficult to arrive at a diagnosis using radiograph alone.

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Objective: Imaging findings for giant cell tumors (GCT) of the spine displaying aggressive characteristics have not been widely reported.

Materials And Methods: Patients with biopsy-proven GCT were included in the study. Three cases fulfilled these criteria.

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Sex-cord tumors with annular tubules (SCTAT) have been extensively reported in the literature with great emphasis on the cytologic and histologic appearance. The association of Peutz-Jeghers syndrome (PJS) with bilateral benign, typically multifocal, small, and sometimes calcified SCTAT has also been reported. We present and describe the sonographic findings of bilateral SCTAT in a patient with PJS.

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Appendiceal intussusception is a rare entity. The majority of cases reported in the literature address surgical and colonoscopic approaches to treatment of the condition. The existing radiologic literature largely describes the sonographic and double-contrast enema findings of appendiceal intussusception.

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Background: Growing skull fractures and other enlarging skull defects are rare postoperative occurrences. We report here on a 10-month-old girl who presented with an enlarging burr hole and pseudomeningocele after an endoscopic third ventriculocisternostomy.

Methods: Evaluation of an enlarging subcutaneous mass at the site of the burr hole included computed tomography scans and magnetic resonance imaging, which revealed a pseudomeningocele.

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