Dec 23, 2014
Air- fluid level= acute sinusitis
= chronic sinusitis
Retention cyst
Submucosal accumulation of serous fluid.Smooth domed shaped structure.
Usually seen at the inferior aspect of the maxillary sinus and cannot differentiated from the polyp.
Sinonasal polyposis
Antro choanal polyp
Antro choanal polyp
Maxillary mucocele
Fronto-ethmoidal mucocele
Fungal sinusitis
Fungal sinusitis with intra-cranial extension
Osteoma
A large Inverted papilloma
Nasopharyngeal Angiofibroma
Left maxillary Carcinoma with nasal extension.