PMC7750352_01
(a) The appearence of swelling, approximately 2x2 cm, in the frontal area. (b) The mass eroding the left frontal sinus anterior wall on paranasal sinus tomography
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F1
On physical examination, his oropharynx was hyperemic, there was periorbital edema and 2x2 cm of local swelling infraorbitally, hyperemia and local increase in the heat (Fig. 1a). The paranasal sinus CT revealed increased mucosal thickness and appearance of a collection and a sclerotic lesion (osteoma?) in both frontal sinuses (with a size of 42x28 mm with lobulated contours in the widest part in the coronal plane extending to the left ethmoid cells on the left side), and an erosion in the anterior wall of the frontal sinus adjacent to the lesion described (Fig. 1b).