PMC9450681_01
Preoperative CT scan: mucosal thickening in the sphenoethmoidal recess matching the endoscopic finding.
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Paranasal sinus CT scan showed a mass in the sphenoethmoidal recess, of soft tissue density, matching the endoscopy result (Figure 1).
Postoperative CT: complete removal of the lesion.
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We then decided for a total sphenoethomoidectomy, and lesion exeresis in its origin in the sphenoethmoidal recess with free mucosal margin. (Figure 2).
Histology cross-section of the lesion, showing the characteristic inversion of the epithelium surface to inside the stroma of the inverted papilloma.
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The pathology exam showed an inverted papilloma, with no malignancy signs (Figure 3, Figure 4).
Histology cross-section of the inverted papilloma, without malignancy.
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The pathology exam showed an inverted papilloma, with no malignancy signs (Figure 3, Figure 4).