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Clinicopathologic study of the postoperative maxillary cyst
Oral Surgery, Oral Medicine, and Oral Pathology
|November 1, 1986
Summary
Postoperative maxillary cysts are a common oral lesion, often appearing in young adults. This study examines their clinicopathological features and potential origins from sinus or nasal mucosa.
Area of Science:
- Oral Pathology
- Maxillofacial Surgery
- Cystic Lesions
Background:
- Postoperative maxillary cysts represent a significant portion of oral cystic lesions.
- These cysts are frequently diagnosed in patients during their 20s and 30s.
- The clinical presentation can span decades post-surgery, with durations ranging from 10 to 49 years.
Purpose of the Study:
- To conduct a clinicopathological analysis of 60 postoperative maxillary cyst cases.
- To investigate the radiographic and histopathological characteristics of these cysts.
- To explore the potential origins of maxillary cysts based on their location relative to the nasal cavity and sinus mucosa.
Main Methods:
- Clinicopathological examination of 60 surgically treated maxillary cysts.
- Radiographic analysis to assess lesion characteristics and sinus involvement.
- Histopathological evaluation of cyst lining epithelium and associated findings like dysplasia.
Main Results:
- Postoperative maxillary cysts constituted 19.5% of all studied oral cystic lesions.
- Radiographic findings predominantly showed unilocular lesions, with two-thirds occupying over half the maxillary sinus volume.
- Histopathology revealed varied epithelial linings (cuboidal, squamous, mixed), primarily ciliated columnar, with two cases showing epithelial dysplasia.
Conclusions:
- Cysts near the nasal cavity may arise from regenerated nasal mucosa.
- Cysts distant from the nasal cavity could be lined by entrapped sinus mucosa epithelium.
- Understanding these origins aids in differentiating and managing postoperative maxillary cysts.