Stephen R. Watt-Smith

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Riga-Fede is the rare condition of benign ulceration caused by repetitive trauma to the lingual tissues by the teeth in children younger than two years of age. The differential diagnosis includes infective and neoplastic conditions. Histological diagnosis is required when the symptoms fail to resolve with standard management. The case involving an(More)
The current T4a subclassification of the TNM staging system for oral malignancies has been criticised as based almost exclusively on anatomical data. The aim of this study was to provide anatomical confirmation of the muscular constraints of T4a classification of oral tongue tumours. A detailed anatomical study describing and measuring the adjacency of the(More)
Angioleiomyomas are benign solitary smooth muscle tumors originating in the tunica media of vessels. They are rarely encountered within the oral cavity, and the number of reported cases specifically involving the hard palate remains small. A 39-year-old man presented with a 2-cm painless swelling on the left anterior hard palate. The mass had been present(More)
MRI plays a crucial but under utilized role in the surgical management of lingual squamous cell carcinoma (SCC). Measurement of three-dimensional tumour volume (TV) has the potential to guide management of clinically negative cervical lymph nodes and address deficiencies in current TNM staging criteria This work studied the value of MRI-measured TV as a(More)
In this paper, a new method for metal artefact reduction in computed tomography is investigated, based on sinusoidal amendment. Each voxel in the scanned object corresponds to a sinusoidal curve in the projection data set. Some of the sinusoidal curves result from metal implant, which can be identified because the attenuation(More)
BACKGROUND The optimal sympathomimetic drug to support blood pressure without adverse vasoconstriction of free flap circulation remains unknown. This study examined the effects of four agents (epinephrine, norepinephrine, dobutamine, and dopexamine) on free flaps following resection of head and neck cancer. METHODS Twenty-four patients (25 data sets) were(More)
To determine the potential of novel gradient echo parameters, “Black Bone” MRI as an alternative to CT in the identification of normal and prematurely fused cranial sutures both in 2D and 3D imaging. Thirteen children with a clinical diagnosis of craniosynostosis underwent “Black Bone” MRI in addition to routine cranial CT. “Black Bone” datasets were(More)
There are increasing concerns relating to the ionizing effects of computed tomography imaging in infants with benign conditions. Magnetic resonance imaging (MRI) is a potential alternative to ionizing radiation when determining patency of the cranial sutures; however, there is no documentation in the literature on the appearance of normal cranial sutures in(More)