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Title: Linear lesions may assist early diagnosis of neuromyelitis optica and longitudinally extensive transverse myelitis, two subtypes of NMOSD. Author: Cai W, Tan S, Zhang L, Shan Y, Wang Y, Lin Y, Zhou F, Zhang B, Chen X, Zhou L, Wang Y, Huang X, Men X, Li H, Qiu W, Hu X, Lu Z. Journal: J Neurol Sci; 2016 Jan 15; 360():88-93. PubMed ID: 26723980. Abstract: PURPOSE: To investigate the relationship between linear lesions (LL) and the development of longitudinally extensive spinal cord lesions (LESCL) in Chinese patients with neuromyelitis optica or longitudinally extensive transverse myelitis. METHOD: The clinical records of 143 patients with these conditions were reviewed. Forty-one patients with LL were divided into three groups according to the order of appearance of LL and LESCL (simultaneously [n=10], LL first [n=26], or LESCL first [n=5]). The remaining 102 patients without LL were used as a control group. RESULTS: Patients who developed LL first demonstrated a lower annualized relapse rate than those in the simultaneous group (1.00 [0.23-10.00] vs. 4.38 [0.60-6.67], p=0.017) and the control group (1.00 [0.23-10.00] vs. 2.00 [0.24-10.00], p=0.007). Among all patients with LL, there were significantly more who developed them before LESCL than those who developed them after LESCL (p<0.001) or at the same time (p=0.008). The mean time before the appearance of LESCL was 9.0months (2-35months) in the 'LL-first' group, which was shorter than that in the control group (12months [1-60months], p=0.010). The rate of positivity for anti-aquaporin 4 IgG antibodies was higher in patients with LL compared with controls (90.24% vs. 64.71%, p=0.002). CONCLUSION: LL may be a precursor to LESCL and assist early diagnosis of neuromyelitis optica and longitudinally extensive transverse myelitis.[Abstract] [Full Text] [Related] [New Search]