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Case Reports
. 2014 Oct 31;20(5):609-13.
doi: 10.15274/INR-2014-10051. Epub 2014 Oct 17.

Aneurysmal bone cyst in the temporal bone and complete resection with preoperative embolization. A case report

Byoung Je Kim  1 , Eun Ju Lee  2 , Hyuk Won Chang  2 , Hae Ra Jung  3 , Ealmaan Kim  4 , Sung Il Sohn  5 , Sang Pyo Kim  3
Affiliations
Case Reports

Aneurysmal bone cyst in the temporal bone and complete resection with preoperative embolization. A case report

Byoung Je Kim et al. Interv Neuroradiol. .

Abstract

We describe a rare case of aneurysmal bone cysts (ABCs) that occurred in the petrous portion of the temporal bone. The ABCs were treated with preoperative embolization and complete removal of the mass from the adjacent tissue. The technical details suggest that preoperative embolization is a good treatment option for ABCs.

Keywords: aneurysmal; angiography; bone cysts; digital subtraction; temporal bone.

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Figures

Figure 1
Figure 1
A) Axial temporal bone computed tomography (CT) scan shows bony destruction of the anterior portion of the mastoid air cells resulting in the meniscus sign. B) Coronal temporal bone CT scan shows severe bony thinning and destruction of the inner and outer tables of the temporal bone and a focal area of ground-glass attenuation along the inner table of the temporal bone.
Figure 2
Figure 2
A) Axial fluid attenuated inversion recovery image shows an expansile extra-axial mass with fluid-fluid levels involving the temporal bone with a multicystic soap bubble appearance. The upper layer of the fluid-fluid level is not suppressed as cerebral spinal fluid. B) The axial gradient-echo image shows that the lower layer of the fluid-fluid level demonstrates low signal intensity suggestive of blood. C) Axial T1-weighted non-contrasted image. D) Coronal T1-weighted image with contrast enhancement. D) A well-enhanced internal septa and a soft tissue attenuated lesion anchoring to the squamous portion of the temporal bone.
Figure 3
Figure 3
A,B) Pre-embolization angiograms. A) Global external carotid artery injection. B) Selective injection of the middle meningeal artery (MMA). The angiograms show the mass, which is mainly fed by the MMA. C) The post-embolization angiogram shows occluded middle (arrowhead) and posterior (arrow) branches of the right MMA with minimal residual tumor staining from the right superficial temporal artery and posterior auricular artery.
Figure 4
Figure 4
The microphotograph of the aneurysmal bone cyst shows cystic spaces including red blood cells which are separated by septa including spindle shaped cells and scattered multinucleate giant cells.
See this image and copyright information in PMC

References

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