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Case Reports
. 2014 Apr 4:2014:bcr2013202319.
doi: 10.1136/bcr-2013-202319.

Aneurysmal bone cyst of the ethmoid bone

Noor Janjua  1 , Manuela Cresswell, Rishi Sharma, Arcot Maheshwar
Affiliations
Case Reports

Aneurysmal bone cyst of the ethmoid bone

Noor Janjua et al. BMJ Case Rep. .

Abstract

A 90-year-old woman presented with headache and diplopia, and a mass in the nasal cavity and paranasal sinuses was found on CT scan. The patient underwent examination under anaesthesia showing a mass arising from the ethmoid, apparently from the nasal septum. Biopsies taken showed an aneurysmal bone cyst. The patient opted against surgery and has been managed conservatively. A second CT scan 4 years later showed significant increase in size.

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Figures

Figure 1
Figure 1
Axial section of the CT scan at initial presentation showing cystic, soft tissue mass causing expansion of the nasal cavity.
Figure 2
Figure 2
Coronal sections of the CT scan at 4-year follow-up delineating the cyst and exemplifying the ‘aneurysmal’ bony wall with cortical thinning and interruption.
Figure 3
Figure 3
Axial sections of the CT scan at 4-year follow-up, showing increased size and the typical features of expanded bony wall and fluid–fluid levels within the cysts.
See this image and copyright information in PMC

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