“…Nerve fiber lesions were studied in about 120 cases. There was segmental demyelination alone in six of 17 cases ( Nakanishi et al, 1984 ) and in the case described by Shelley and Shelley (1987) , and axonal degeneration alone was described in three of 17 cases ( Nakanishi et al, 1984 ) , in two of four cases ( Saida et al, 1997 ) , in the two cases reported by Teixeira et al (1990) , and in 12 individual cases ( Trentham et al, 1976 ; Iwashita et al, 1977 ; Bitter et al, 1985 ; Berkovic et al, 1986 ; Semble et al, 1986 ; Reulecke et al, 1988 ; Barrier et al, 1989 ; Donaghy et al, 1989 ; Romas et al, 1992 ; Orefice et al, 1994 ; Simmons et al, 1994 ; Midroni and Bilbao, 1995 ) . A mixture of segmental demyelination and axonal degeneration was found in 73 cases: eight of 17 cases ( Nakanishi et al, 1984 ) , nine cases ( Ohnishi, 1984 ) , six cases ( Pareyson et al, 1994 ) , 22 cases ( Vital et al, 1994 ) , seven cases ( Watanabe et al, 1998 ) , four cases ( Adams and Said, 1998 ) , two cases ( Ohi et al, 1985 ; Gherardi et al, 1988 ; Saida et al, 1997 ) , and 11 individual cases ( Driedger and Pruzanski, 1980 ; Bourdette and Rosenberg, 1984 ; Hyman and Westrick, 1986 ; Lapresle et al, 1986 ; Semble et al, 1986 ; Viard et al, 1988 ; Brousolle et al, 1991 ; Crisci et al, 1992 ; Adelman et al, 1994 ; Tuite and Bril, 1997 ; Adams et al, 2000 ) .…”