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  • Courtesy of Temiloluwa Abikoye, MD. Submitted by Misty Ruppert, MD.
    File Size: 671 KB
    Cornea/External Disease, Pediatric Ophth/Strabismus

    A 4-year-old female presented for orbital MRI of a slowly growing painless mass in the medial left orbit. MRI showed two non-enhancing cystic lesions of the left orbit: a superficial medial lesion and an incidental deep extraconal cyst abutting the lateral rectus muscle. A, Superficial medial cyst measuring 10 x 7 x 7 mm. B,: Incidental deep extraconal cyst abutting the lateral rectus muscle with a diameter of 6 mm.) Both lesions were radiologically compatible with dermoid cysts. Anterior orbitotomy and excision biopsy of the superficial cyst allowed for histologic confirmation of a dermoid cyst. Despite the proximity of the second cyst to the lateral rectus muscle, the patient remained orthophoric with full extraocular motility.