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Chronic Maxillary Atelectasis without Obstruction of the Maxillary Ostium - A Case Report
Yuki Numano1, Kazuhiro Nomura1, Tomotaka Hemmi1
1Department of Otolaryngology, Tohoku Kosai Hospital, Head and Neck Surgery, Tohoku University Hospital, Miyagi, Japan.
Annals of Maxillofacial Surgery
|March 6, 2023
Summary
Chronic maxillary atelectasis (CMA) can occur without ostiomeatal complex obstruction. In this case, osteitis with chronic rhinosinusitis may be the cause of CMA.
Area of Science:
- Otolaryngology
- Radiology
Background:
- Chronic maxillary atelectasis (CMA) is typically linked to negative maxillary sinus pressure from ostiomeatal complex obstruction.
- The silent sinus syndrome is a form of CMA characterized by sinus opacification and paradoxical inward bowing of the maxillary sinus walls.
Observation:
- A 49-year-old female presented with nasal congestion, rhinorrhea, and cheek pain.
- Computed tomography (CT) revealed inward bowing of the left maxillary sinus, a sign of CMA, despite a patent maxillary ostium.
- The patient had no symptoms directly attributable to the observed CMA.
Findings:
- The patient's CMA was not explained by the standard theory of ostiomeatal complex obstruction.
- CT confirmed hypertrophy of the left maxillary bone.
- Osteitis with chronic rhinosinusitis is proposed as a potential cause for CMA in this case with an open sinus.
Implications:
- This case challenges the conventional understanding of CMA pathogenesis.
- It suggests that osteitis with chronic rhinosinusitis could be an alternative cause of CMA, even with a patent ostium.
- Further research is needed to explore alternative etiologies of CMA.
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