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  • Title: Facial nerve palsy in giant-cell arteritis: case-based review.
    Author: Claeys E, Gheysens O, Meersseman W, Verbeken E, Blockmans D, Henckaerts L.
    Journal: Rheumatol Int; 2021 Feb; 41(2):481-486. PubMed ID: 32794114.
    Abstract:
    Acute peripheral facial nerve palsy is most frequently idiopathic (Bell's palsy) or virally induced, but can also be due to several other conditions. A rare cause is underlying systemic or autoimmune disease. A 79-year-old man presented with peripheral facial nerve palsy, malaise, and fever. Physical examination revealed tenderness of the left temporal artery and reduced pulsatility. 18F-FDG-PET/CT and biopsy of the temporal artery confirmed the diagnosis of giant cell arteritis (GCA). Prompt institution of corticosteroid therapy produced rapid decrease in inflammatory markers and gradual improvement of the facial nerve palsy. We searched the MEDLINE, Embase, and Scopus databases to identify previous reports of peripheral nerve palsy in GCA, other vasculitides, and autoimmune diseases. Facial nerve palsy as the presenting symptom of GCA has very rarely been reported. Although temporal artery biopsy is the gold standard for diagnosis, it may be negative in up to one-third of cases. In doubtful cases, imaging can help establish the diagnosis. Ultrasound, 3 T MRI, and 18F-FDG-PET/CT have all been previously reported to be useful. Peripheral facial nerve palsy may very rarely be the presenting symptom of GCA. Early correct diagnosis is essential for starting appropriate therapy. In patients with atypical features, 18F-FDG-PET/CT may be useful for establishing the diagnosis.
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