PMC6290393_01
Paranasal coronal, axial and sagittal CT scan shows right ethmoid sinus and nasal cavity tumor.
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Dehiscence of the right lamina papyracea and right cribriform plate was also found (Fig. 1).
The well-demarcated bony wall which is hypointense to soft tissue on axial MRI T2-weighted image. B: MRI images demonstrate right ethmoid lesion with mass effect and ethmoid air cells primary tumor.
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These radiological findings were consistent with those found by sinus navigation CT and para-nasal MRI study (Fig. 2).
Histopathologicaly, this lesion is characterized by spindle cell proliferation packed with globular cementum droplets and round/ovoid fragments of woven bone. These spindle cells appear benign and associated with psammomatoid cementum droplets and some woven bone and consistent with aggressive ossifying fibroma, psammomatous type IV.
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These spindle cells appeared benign and were associated with psammomatoid cementum droplets and some woven bone and were typical of aggressive ossifying fibroma (Fig. 3).
Intraoperative pictures of right ethmoid tumor resection.
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Later on, the patient underwent another sinus surgery, septoplasty, frontal sinusotomy and near total endoscopic resection of the tumor (Fig. 4).