Radiological Pitfalls in Patients with Inducible Dynamic Proptosis
Sharon R Morris 1, Jean-Louis DeSousa1, Ian Francis 2, Lekha Chandrasekharan2, Raman Malhotra1, *
Identifiers and Pagination:Year: 2008
First Page: 91
Last Page: 93
Publisher ID: TOOPHTJ-2-91
Article History:Received Date: 12/2/2008
Revision Received Date: 14/3/2008
Acceptance Date: 17/4/2008
Electronic publication date: 5/5/2008
Collection year: 2008
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.5/), which permits unrestrictive use, distribution, and reproduction in any medium, provided the original work is properly cited.
We report two patients presenting with marked clinical unilateral enophthalmos who had positional variability and dynamic proptosis on valsalva. On orbital imaging, enophthalmos was not documented and in fact, globe proptosis of the same side was reported for one of the patients. During CT and MRI scanning patients are often instructed to hold their breath to eliminate motion artefact. This may inadvertently induce dynamic proptosis. The radiological pitfalls of imaging patients with inducible dynamic proptosis and how to identify such patients are discussed.