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  • Title: Diagnostic value and limitations of orbital biopsy in Wegener's granulomatosis.
    Author: Kalina PH, Lie JT, Campbell RJ, Garrity JA.
    Journal: Ophthalmology; 1992 Jan; 99(1):120-4. PubMed ID: 1741123.
    Abstract:
    Patients with Wegener's granulomatosis may present with ophthalmic involvement in either the classic or limited forms. Although the overall clinical picture and serologic testing for antineutrophil cytoplasmic antibody (ANCA) are important, biopsy is often necessary for a definitive diagnosis. Accurate interpretation of these orbital biopsies is essential. The authors reviewed the histopathologic features of 13 orbital biopsies in patients with well-documented Wegener's granulomatosis. The classic triad of vasculitis, tissue necrosis, and granulomatous inflammation was seen in 7 of 13 biopsies (54%). Vasculitis in combination with other microscopic findings was seen in 4 of 13 (31%) biopsies. Giant cells were seldom seen. Two biopsies showed only perivascular infiltrates. Based on this study, it appears that a spectrum of histopathologic features can be seen in orbital biopsies in Wegener's granulomatosis. This study underscores the importance of clinical correlation, the application of the ANCA test, and comparison with extraorbital biopsies, if available, when interpreting orbital biopsies in the diagnosis of Wegener's granulomatosis.
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