TABLE 2:

LS Non-SURF-1 Group

Case and DiagnosisLocation of MR Abnormalities
Medulla OblongataPonsMidbrainCerebellumSubthalamic NucleiThalamiBasal Ganglia
1, complex I++++
2, not defined
3, complex III+++
4, complex I, III, IV+
5, complex IV+
6, complex IV++ r+
7, complex IV++++
8, complex I++ (−)+ (−)+− (+)
9, complex IV+++
10, complex I+/−++NA++
11, PDH++
12, PDH+
13, complex I+++ (−)− (+)+− (+)
14, MILS/NARP+++
  • Note.—Abbreviations are as follows: NA indicates not accessible; +, present; −, absent; +/−, doubtful; (+), lesion appeared on follow-up MR images; (−), lesion disappeared on follow-up MR images.