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  • Title: Posttraumatic Respiratory Epithelial Orbital Cyst With Intracranial Extension: A Unique Association.
    Author: Theofilou NE, Becker M, Lombardi T, Scolozzi P.
    Journal: Ophthalmic Plast Reconstr Surg; ; 37(1):e25-e28. PubMed ID: 32427731.
    Abstract:
    Respiratory epithelial orbital cysts (REOC) are rare benign lesions that may be either congenital or acquired. Congenital REOC develop from embryological epithelial rests and are known as choristomas, whereas acquired forms develop from the sequestration of respiratory epithelium from adjacent paranasal sinuses following trauma and/or fracture repair procedures. The final diagnosis can be difficult because congenital and acquired REOC and mucoceles share the same features histologically. The involvement of the paranasal sinuses, which is the landmark of mucoceles, does not occur with REOC. Moreover, the intracranial extension, which is known for mucoceles, has never been reported for REOC. Respiratory epithelial orbital cysts warrant prompt radical surgical resection given that these lesions may lead to a progressive intracranial progression and/or recurrent infection with a potential for meningitis or cerebral abscess. The authors report a unique case of a patient with an intraorbital posttraumatic respiratory epithelial orbital cyst associated with intracranial involvement.
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