Kirito Y, Yamamoto D, Uchiyama T. Proteinase 3-antineutrophil cytoplasmic antibody-positive ulcerative colitis presenting with abducens neuropathy.
BMJ Case Rep 2017;
2017:bcr-2016-218353. [PMID:
28069788 PMCID:
PMC5256449 DOI:
10.1136/bcr-2016-218353]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
A 72-year-old man with ulcerative colitis (UC) presented with complete left abducens nerve palsy. Although MRI showed no significant changes, cerebrospinal fluid analysis revealed pleocytosis and elevated protein and interleukin (IL)-6 levels. His serum proteinase 3-antineutrophil cytoplasmic antibody (PR3-ANCA) level was also elevated to 31.1 U/mL, but granulomatosis with polyangiitis was not observed. On the basis of the diagnosis of autoimmune cranial neuropathy, he was treated with steroid therapy. While tapering steroid therapy, his serum PR3-ANCA levels; cerebrospinal fluid findings, including IL-6 levels; and symptoms improved. Serum PR3-ANCA could be a useful parameter of neurological disorders associated with ANCA-positive UC.
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