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OCULAR SARCOIDOSIS MASQUERADING AS ACUTE RETINAL NECROSIS: TWO CASE REPORTS
Hsin-Ming Liu1, Yung-Jen Lai1,2, Fang-Yi Chiu1
1Department of Ophthalmology, Mackay Memorial Hospital, Taipei, Taiwan ; and.
Purpose:
To report two cases of ocular sarcoidosis (OS) initially presenting as unilateral acute retinitis, which mimicked acute retinal necrosis.
Methods:
Retrospective descriptive case reports.
Results:
Two middle-aged healthy Asian women experienced progressive vision loss in their left eyes over a one-month period. Anterior uveitis, vitritis, and diffuse peripheral retinal infiltration were observed. Comprehensive diagnostic evaluations were conducted, including blood workup, viral polymerase chain reaction of anterior chamber paracentesis samples, and chest X-ray, all yielding negative results. Despite prompt initiation of antiviral therapy, retinal infiltrations remained unchanged within the first 10 days. Chest CT imaging revealed multiple lymphadenopathies consistent with sarcoidosis. Case 1 was presumed OS, and case 2 was definite OS based on lung and lymph node biopsy results in accordance with the 2017 revised international workshop on OS (IWOS) criteria. In both cases, the retinal lesions gradually resolved after several weeks of systemic corticosteroids, and the best corrected vision of the affected eye improved to 20/25 at the 12- and 6-month follow-ups, respectively.
Conclusion:
Acute unilateral retinal infiltration in the peripheral region, exhibiting rapid progression resembling acute retinal necrosis, can be a rare manifestation of OS. Chest CT imaging can provide valuable assistance in the diagnostic process, especially when systemic examinations yield no significant findings.
