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Nasoseptal cyst after septorhinoplasty: late and unusual but preventable complication. Introduction: Formation of a slowly growing cyst following septorhinoplasty is a rare but serious complication. Mucous cyst is more common than foreign body inclusion cyst. Typically, these cysts present as a solitary lesion that develops in the subcutaneous space over the nasal bone along the line of nasal osteotomy several months or years after initial surgery. Rarely, the cyst connects with the nasal septum. Surgery is the treatment of choice and consists of either complete excision of the cyst capsule or marsupialization of the cyst. Case report: A nasoseptal mucous cyst developed in a 46-year-old woman 10 years after septorhinoplasty. We successfully marsupialized the cyst with an endonasal endoscopic approach.
Conclusion: Cysts can be removed by either complete resection of the cyst capsule or marsupialization via endonasal endoscopy. To prevent cyst formation, initial surgery must be conducted nontraumatically and tissue remnants cleared to prevent dispersion into subcutaneous spaces.