Clinical record A 6-year-old girl presented to her general practitioner with a red left eye. She reported no pain or irritation, but did have difficulty seeing into the distance with blurring of vision in the affected eye. Associated with this symptom was the onset of neck stiffness with limitation in neck flexion and rotation. This had increased gradually over the preceding month and was most problematic in the morning. There were no associated fevers, rashes, gastrointestinal or genitourinary symptoms. She had been well in the past, was not taking any medications, and her vaccinations were up to date. Her elder sister had been diagnosed with juvenile idiopathic arthritis (JIA) at the age of 18 months, her mother had type 1 diabetes mellitus. A maternal aunt had been diagnosed with rheumatoid arthritis 4 years earlier. Examination revealed inflamed palpebral conjunctivae in the left eye, and mild restriction in the range of neck rotation and flexion. There were no other findings. The patient was diagnosed with conjunctivitis and intermittently prescribed chloramphenicol eye drops over 3 months. The neck discomfort continued over this period, despite physiotherapy. Ultrasonography of the neck showed no abnormalities apart from unusual Iymphadenopathy. This finding prompted a referral to a paediatric oncologist who believed uveitis should be considered in light of the child's family history of JIA. She was referred for an ophthalmologist's opinion. At ophthalmological review, her vision was 6/7.5 in the right eye and 6/12 in the left eye. There was band keratopathy (see Box 1) present in in the region of the visual axis and the pupil was adherent to the lens by posterior synechiae. The child's vision continued to deteriorate to 6/ 24 in the left eye despite treatment with topical dexamethasone 0.1% and atropine 1%. She was referred to the rheumatology service. The rheumatologist found that the child had an elevated erythrocyte sedimentation rate of 43 mm/hour (normal range, 0-20 mm/hour), but the C-reactive protein concentration was within normal limits at 4 mg/ L (normal range, 0-10 mg/L). The antinuclear antibody (ANA) titre was strongly positive at over 1:2560, and showed a homogenous pattern. The double-stranded DNA titre (Farr assay) was within normal limits at < 5 U/mL (normal range, < 11 U/mL). The extractable nuclear antigen screen was negative. Treatment with non-steroidal anti-inflammatory drugs resulted in little improvement, so therapy with oral prednisolone and pulse methylprednisolone was commenced. We saw her when she was admitted for the first of 3 methylprednisolone pulses (625 mg intravenously). Vision in the right eye was 6/9 and in the left it was 6/36. Topical medication was continued and the vision in the left eye improved modestly to 6/24. She was then discharged on topical treatment, and systemic treatment with 2.5 mg methotrexate weekly was commenced. This increased to 7.5 mg weekly over one month. At the most recent review, conducted at the time of the final dose of intravenous methylprednisolone, the vision was stable at 6/6, the intraocular pressure was within normal limits and the anterior chamber appeared quiet, the band keratopathy had partially resolved, but the posterior synechiae remained. The neck symptoms had resolved.
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Aug 13, 2022
Enrico Meduri + 2
