PMC3465887_01
(a) X-ray shows cloudy appearance in the right maxillary sinus including an impacted tooth (arrowhead) in the Caldwell view. (b) X-ray shows cloudy appearance in the right maxillary sinus in the Waters view. (c) Axial view of the CT scan shows a cystic lesion expanding the lateral wall (arrow) of the maxillary sinus containing the impacted tooth inside. (d) Coronal view of the CT scan shows the calcificated cystic wall.
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fig1
An X-ray revealed a cloudy appearance in the right maxillary sinus including an impacted tooth (Figures 1(a) and 1(b)). The axial and coronal views of the computed tomographic (CT) scans revealed an expanding cystic lesion with an impacted tooth in the right maxillary sinus (Figures 1(c) and 1(d)). The cystic wall was calcificated (Figure 1(d)).
Pathological findings reveal lining squamous epithelium (asterisk) and inflamed tissue with lymphocytes and plasma cells. The bar indicates 100 mum. Hematoxylin and eosin stain.
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fig2
Pathological findings revealed lining squamous epithelium and inflamed tissue with lymphocytes and plasma cells comparable with a keratocystic odontogenic tumor (Figure 2).
(a) Postoperatively, maxillary sinus is visualized through the middle meatus using a flexible fiberscope. (b) Cystic lesion (asterisk) is shrunken in the maxillary sinus. (c) Arrow shows an impacted tooth inside the cystic lesion.
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fig3
After the surgery, the maxillary sinus could be visualized through the middle meatus using a flexible fiberscope (Figures 3(a)-3(c)). In addition, the remaining cystic lesion shrank after the surgery (Figure 3(b)), and he was relieved of the purulent nasal discharge and odontalgia completely.