Inflammatory Cortical Demyelination in Early Multiple Sclerosis
Claudia F. Lucchinetti,Bogdan F. Gh. Popescu,Reem F. Bunyan,Natalia M. Moll,Shanu F. Roemer,Hans Lassmann,Wolfgang Brück,Joseph E. Parisi,Bernd W. Scheithauer,Caterina Giannini,Stephen D. Weigand,Jay Mandrekar,Richard M. Ransohoff +12 more
TLDR
In this cohort of patients with early-stage multiple sclerosis, cortical demyelinating lesions were frequent, inflammatory, and strongly associated with meningeal inflammation.Abstract:
Background Cortical disease has emerged as a critical aspect of the pathogenesis of multiple sclerosis, being associated with disease progression and cognitive impairment. Most studies of cortical lesions have focused on autopsy findings in patients with long-standing, chronic, progressive multiple sclerosis, and the noninflammatory nature of these lesions has been emphasized. Magnetic resonance imaging studies indicate that cortical damage occurs early in the disease. Methods We evaluated the prevalence and character of demyelinating cortical lesions in patients with multiple sclerosis. Cortical tissues were obtained in passing during biopsy sampling of white-matter lesions. In most cases, biopsy was done with the use of stereotactic procedures to diagnose suspected tumors. Patients with sufficient cortex (138 of 563 patients screened) were evaluated for cortical demyelination. Using immunohistochemistry, we characterized cortical lesions with respect to demyelinating activity, inflammatory infiltrates, ...read more
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