A case of giant cell arteritis presenting with nodular posterior scleritis mimicking a choroidal mass

Systemic Vasculitis and Its Association with the Eye

Vasculitis is a group of diseases characterized by the inflammation of the blood vessel walls. They are classified according to the size of the main vessel involved: large vessel, medium vessel, and small vessel vasculitis. Ophthalmic manifestations are quite common in most of these diseases. Episcleritis and scleritis are the most prevalent manifestation of vasculitis. However, there are certain ocular features characteristic of specific vasculitis entities. Given the severity and potential life-threat of these diseases, knowledge of the ocular manifestations is mandatory for the ophthalmologists.

Atypical Cogan's Syndrome Mimicking Giant Cell Arteritis Successfully Treated with Early Administration of Tocilizumab

A 49-year-old Japanese man with a 2-month history of a fever, headache, and bilateral conjunctival hyperemia was admitted. His condition fulfilled the giant cell arteritis classification criteria (new headache, temporal artery tenderness, elevated ESR) and atypical Cogan's syndrome (CS) with scleritis and sensorineural hearing loss (SNHL). The interleukin (IL)-6 serum level was extremely high. Two weeks after his insufficient response of SNHL and scleritis to oral prednisolone, we administered tocilizumab (TCZ); rapid improvements in scleritis and SNHL occurred. Early IL-6 target therapy can help prevent irreversible CS-induced sensory organ damage.

Giant cell arteritis and scleritis: A rare association

Background

Giant cell arteritis (GCA) is a vasculitis of the large and medium-sized arteries in the elderly whose ischemic complications adversely affect the eye. The irreversible loss of visual acuity is most often related to acute anterior ischemic optic neuropathy. Very few cases of scleritis have been described in the literature.

Case Presentation

The patient presented an obvious case of giant cell arteritis, initially revealed by an ophthalmologic involvement in the form of posterior scleritis, an ear, nose, and throat (ENT) involvement with vestibular and neurological involvement with a type of peripheral neuropathy, all evolving in the context of a weight loss of 8 kg and a marked biological inflammatory syndrome. The patient presented several relapses of giant cell arteritis in the form of several episodes of anterior and posterior, right and left, and even bilateral, isolated scleritis without any other clinical or biological abnormalities, always in conjunction with a decrease in corticosteroid therapy. In the presence of corticosteroid dependence and resistance to methotrexate, tocilizumab was initiated.

Conclusion

The therapeutic management of scleritis associated with giant cell arteritis is difficult. In the absence of a codified scheme, the treatment remains empirical, based on the experience of the various teams. In this context, biotherapies (anti-IL6 type, such as tocilizumab) are increasingly used.

Multimodal imaging in infectious and noninfectious intermediate, posterior and panuveitis

PURPOSE OF REVIEW

Given the heterogeneity of uveitis, markers of inflammation vary from patient to patient. Multimodal imaging has proven itself to be critical for accurate evaluation for disease activity and treatment response in uveitis.

RECENT FINDINGS

Ultra-widefield (UWF) fluorescein angiography and autofluorescence (AF) as well as optical coherence tomography angiography (OCTA) have provided insights into disease pathogenesis and monitoring not previously appreciated. In addition to structural retinal imaging, OCT can be used to assess the choroid, the posterior cortical vitreous and the retinal vasculature in eyes with uveitis.

SUMMARY

Multimodal ocular imaging in eyes with uveitis is critical for disease diagnosis and assessing response to treatment. UWF fluorescein angiography can detect retinal vasculitis even in the absence of overt vascular sheathing. UWF AF can help detect more chorioretinal lesions than clinically visible. OCT can be used to assess the posterior cortical vitreous, retina, large retinal vessels and choroid in uveitis. The use of multimodal imaging will likely be needed to determine clinical trial endpoints in studies evaluating therapeutics for uveitis.