“…[21] A few cases were reported on the use of aqueous sampling for cytology which led to the diagnosis of metastases masquerading as anterior uveitis. [79][80][81][82][83][84] Of patients undergoing diagnostic vitrectomy for uveitis of unknown cause, detection of metastasis from cytology results was rare in the literature, [11,85,86] with only one case reported in each of these series. In case reports of patients with the rare occurrence of tumors metastatic to the retina and vitreous, these conditions present as intermediate uveitis, vitreous hemorrhage, or retinal vasculitis with vitreous cytology and retinal biopsy assisting in diagnosis if no primary malignancy is identified.…”