Radiological Pitfalls in Patients with Inducible Dynamic Proptosis
Sharon R Morris 1, Jean-Louis DeSousa1, Ian Francis 2, Lekha Chandrasekharan2, Raman Malhotra1, *
1 Corneoplastic Unit, Queen Victoria Hospital, Holtye Road, East Grinstead, West Sussex RH19 3DZ, UK
2 Department of Radiology, Queen Victoria Hospital, Holtye Road, East Grinstead, West Sussex RH19 3DZ, UK
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.
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* Address correspondence to this author at the Corneoplastic Unit, Queen Victoria Hospital, Holtye Road, East Grinstead, West Sussex RH19 3DZ, UK; Tel: +44 (0) 1342 414549; Fax: +44 (0) 1342 414106; E-mail: firstname.lastname@example.org