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  • Title: [Management of orbital inflammatory disorders in internal medicine: New findings resulting from a retrospective study of 31 consecutive patients].
    Author: La Rosa A, Elourimi G, Zmuda M, Cucherousset N, Tran Ba S, Warzocha U, Larroche C, Sené T, Héran F, Galatoire O, Dhôte R, Abad S.
    Journal: Rev Med Interne; 2020 Dec; 41(12):800-808. PubMed ID: 32861532.
    Abstract:
    PURPOSE: To describe a case series of patients investigated in internal medicine for orbital inflammation (OI) since the individualization of the clinical entity of the IgG4-related orbital disease (IgG4 ROD). PATIENTS AND METHODS: Thirty four patients were consecutively referred by a specialized center where orbital biopsy was performed when the lesion was surgically accessible. Fourteen patients were excluded in case of missing data or lymphoma, periocular xanthogranuloma or Graves' orbitopathy. Patients with systemic or auto-immune disease according to the international criteria, or presenting with idiopathic orbital inflammation syndrome (IOIS), were included. Knowing the histological similarities between IOIS and IgG4 ROD, immunohistochemical assessment of plasma cells for IgG4 positivity was performed for every patient with available biopsy. Clinical and biological characteristics, treatment and response to treatment of included patients are reported. RESULTS: Among 22 included patients, 10 presented with orbital manifestation of a systemic or autoimmune disease including 2 sarcoidosis (9%) and 8 (36%) cases of non specific OI which were reclassified in IgG4 ROD. Finally, IOIS of various clinicopathological presentation was diagnosed for 12 patients including 10 with histological documentation. Whereas relapse and resistance were not found to be related to IgG4 positivity (50% in both IOIS and IgG4 ROD groups), another treatment in addition to corticosteroids was more often necessary in IgG4 ROD patients (50%) than in IOIS patients (25%). CONCLUSION: After ruling out auto-immune orbital diseases, especially IgG4 ROD, IOIS should be discussed. Factors conditioning the corticosteroid response are yet to be determined.
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