Migration of Silicone Oil into the Orbit and Eyelid as a Cyst.

A 7-year-old female presented with left upper eyelid swelling following pars plana deep vitrectomy and silicone oil injection 1 year before admission. The left upper eyelid had mechanical ptosis and on palpation there was a lobulated mobile mass in the lateral portion of eyelid. Computed topography scan showed multiple isodense masses with silicone oil in vitreous in the eyelid and orbit; histopathology after excisional biopsy proved the silicone oil migration. Silicone oil migration followed by vitrectomy may be due to leakage from the site of initial wounds or vitrectomy ports. It is important to suspect extraocular silicone oil migration in patients who presented with eyelid mass-like lesions with a history of silicone oil injection following pars plana deep vitrectomy.