BENIGN cysts which are common in and peculiar to the paranasal sinuses are of two general types, those which take origin from the sinus mucosa and those which invade the maxillary sinuses from the teeth. Dermoids and cysts of the facial cleft, which frequently involve the nasal structures, rarely involve the paranasal sinuses proper. While the pathogenesis of some types of cysts found in the sinuses is fairly well understood, the development of others is not adequately explained, nor is the etiology of certain types established.
A simple classification of these cysts is as follows:
Cysts arising from the sinus mucosa
Retention (glandular) cyst
Follicular cysts (dentigerous 1)
Radicular (root) cyst
This classification does not include cystic neoplasms; therefore adamantinomas, which may become cystic, are not included.
CYSTS ARISING FROM THE SINUS MUCOSA NONSECRETING CYSTS
SCHUKNECHT HF, LINDSAY JR. BENIGN CYSTS OF THE PARANASAL SINUSES. Arch Otolaryngol. 1949;49(6):609–630. doi:10.1001/archotol.1949.03760120036004
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