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H Lewis-Jones

Publications and source records attributed to H Lewis-Jones.

8 recordsLinked to original sources
PubMed2002

The radiological anatomy of the anterior skull base.

Two complications dominate the thoughts of any surgeon undertaking functional endoscopic sinus surgery (FESS), namely damage to orbital structures and fractures of the fovea ethmoidalis. To avoid these complications, a detailed knowledge of the paranasal sinus anatomy of the patient is essential. This is usually assessed using preoperative computerized tomography (CT) scans of the paranasal sinuses. Analysis of 151 CT scans, measuring the height of cribriform plate below a supraorbital horizontal and above the hard palate was performed. Variation of shape and take-off angle of the fovea ethmoidalis was also measured. Comparison between left and right sides, and between scans showing radiological features of sinonasal disease and normal scans, was undertaken. Five patterns of fovea ethmoidalis were identified. No statistically significant difference between left and right sides was demonstrable for any parameter, irrespective of pathological status.

Ethmoid Bone↗
PubMed2001

Evidence for imaging the mandible in the management of oral squamous cell carcinoma: a review.

The accuracy of clinical examination, peroperative periosteal stripping and imaging techniques in predicting tumour invasion of the mandible in oral cancer so far reported have been compared according to their specificity and sensitivity. Clinical examination alone was not shown to be accurate, but periosteal stripping at the time of resection was extremely accurate although so far only one study has investigated it. No single imaging technique will accurately predict the invasion of tumour into the mandible, but a combination of an orthopantomogram and bone scintigraphy is recommended in early invasion. Magnetic resonance imaging is more sensitive than computed tomography and therefore may be more useful if mandibular invasion requires consideration. The decision to resect the mandible as part of the management of oral cancer should be taken on the evidence of clinical examination, periosteal stripping and at least two imaging techniques that complement each other in terms of specificity and sensitivity.

Adipose Tissue↗
PubMed2000

A reply

Curtis, J. and Lewis-Jones, H. (2000). Clinical Radiology55, 984-985. Copyright 2000 The Royal College of Radiologists.

Journal Article↗
PubMed2000

A reply.

Explore the source record for details and available documents.

Cervical Vertebrae↗
PubMed1992

Papillary cystic neoplasm of the pancreas: presentation and natural history in two cases.

Two young women, one white and one Chinese, with the rare but increasingly recognised papillary and cystic neoplasm of the pancreas are reported. The initial symptom in both was non-specific abdominal pain which, after investigation, was found to be caused by a pancreatic tumour. One patient did not come to surgery until five years after the initial diagnosis when she developed jaundice. In the five year interval between diagnosis and the development of jaundice computed tomography showed no change in the size (20 cm) of the pancreatic mass. Histology after resection, however, showed signs of lymphatic invasion. Cystic neoplasm of the pancreas can thus be regarded as an indolent, very slow growing tumour with potential for local invasion and hence metastatic spread.

Adolescent↗