Download A Swallow of The Right Maxillary Posterior Region: CBCT, CT and

A Swallow of The Right Maxillary Posterior Region: CBCT, CT and MRI
Findings
Cansu Köseoğlu Seçgin, Ayse Gulsahi
Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Baskent University,
Ankara, Turkey
Introduction and objectives: Radiographic imaging plays an important role in
establishing the odontogenic etiology of the maxillary sinus pathologies. Cone Beam
Computed Tomography (CBCT) is often used by dentists and otolaryngologists to
assess paranasal sinuses. The advantages of CBCT scanning include lower radiation
dose, higher resolution, and reduced scanning time in comparison with Computed
Tomography (CT). However, CT is considered the gold standard for sinus diagnosis,
because of its ability to both bone and soft tissue. In this case, the limitations of CBCT
in diagnosis maxillary sinus pathology was reported.
Material and methods: A 31 year-old man came to our clinic with the complaint about
the swallow and drainage of pus in the right maxillary molar region. The patient stated
that his first molar tooth was extracted in this region five years ago. Clinical examination
revealed oroantral fistula in the right maxillary molar region. CBCT images which were
taken another clinic showed complete opacification in the right maxillary sinus and
cortical walls of the sinus was not clearly seen.
Results and Discussion: The patient consulted with the otolaryngology department
and CT and MRI images were obtained for the accurate diagnosis. CT showed the
detailed visualization of both bone and soft tissue. Then, surgical operation was
performed and a large mass was extracted from the sinus intraoperatively.
Histopathologic findings confirmed the odontogenic maxillary sinusitis.
Conclusion: In this case, CBCT images were not sufficient to make the accurate
diagnosis and treatment planning of the lesion in the maxillary sinus region.
Key words: Maxillary sinus pathology, CBCT