Revision Septorhinoplasty: An Illustrative Case Report

Pitfalls in posterior fossa CT scanning: an illustrative case report.

Reprint requests to Dr. F.W. Saunders, Division of Neurological Surgery. Kingston General Hospital, Kingston, Ontario, Canada, K7L 2V7. INTRODUCTION This report describes a 24 year old man with a posterior fossa medulloblastoma. His postoperative course was instructive because of the discrepancies that developed between the CT scan interpretations and the operative findings. His case history wi...

Sturge-Weber Syndrome (with an Illustrative Case Report)

The radiological findings in the majority of cases are of a distinctive character. The skiagram of the skull shows areas of tortuous, parallel, double lines of calcification. On superficial examination of the skiagram the calcification appears to be in the walls of the abnormal cortical blood vessels, but histological studies have shown that it is actually in the convolutions of the brain in th...

Chylous Ascites, with an Illustrative Case

Varieties of concretisation: an illustrative case study

This paper illustrates, compares and contrasts a variety of different constructions that can be viewed as serving a role in concretisation – the process of developing concrete artefacts to support a learner in understanding abstract concepts. Our illustrative examples are based around the theme of introducing simple number-theoretic notions by representing operations on integers by actual or si...

On Asthma Gravidarum, with an Illustrative Case