Symptom Information: Sort according to HPO 

1
 (HPO:0001924) Sideroblastic anemia Very frequent [IBIS] 25638461 IBIS 12 / 7739
2
 (HPO:0002151) Increased serum lactate Very frequent [IBIS] 25638461 IBIS 92 / 7739
3
 (HPO:0003128) Lactic acidosis Very frequent [IBIS] 25638461 IBIS 116 / 7739
4
 (HPO:0003737) Mitochondrial myopathy Frequent [IBIS] 25638461 IBIS 18 / 7739
5
 (HPO:0000508) Ptosis 23918765 IBIS 459 / 7739
6
 (HPO:0001488) Bilateral ptosis 23918765 IBIS 42 / 7739
7
 (HPO:0001508) Failure to thrive 23918765 IBIS 454 / 7739
8
 (HPO:0001510) Growth delay 23918765 IBIS 295 / 7739
9
 (HPO:0001639) Hypertrophic cardiomyopathy 25638461 IBIS 137 / 7739
10
 (HPO:0002015) Dysphagia 24344687 IBIS 301 / 7739
11
 (HPO:0002240) Hepatomegaly 24344687 IBIS 467 / 7739
12
 (HPO:0002747) Respiratory insufficiency due to muscle weakness 24344687 IBIS 48 / 7739
13
 (HPO:0002910) Elevated hepatic transaminases 24344687 IBIS 158 / 7739
14
 (HPO:0003323) Progressive muscle weakness 24344687 IBIS 17 / 7739
15
 (HPO:0003546) Exercise intolerance 23918765 IBIS 62 / 7739
16
 (HPO:0003202) Skeletal muscle atrophy 23918765 IBIS 281 / 7739
17
 (HPO:0003700) Generalized amyotrophy 23918765 IBIS 39 / 7739
18
 (HPO:0100295) Muscle fiber atrophy 25638461 IBIS 22 / 7739
19
 (OMIM) Skeletal muscle biopsy shows subsarcolemmal mitochondrial aggregates 20598274 IBIS 1 / 7739
20
 (OMIM) Rare ragged red fibers 20598274 IBIS 1 / 7739
21
 (OMIM) Decreased cytochrome C oxidase activity 20598274 IBIS 2 / 7739
22
 (HPO:0001875) Neutropenia 25638461 IBIS 83 / 7739
23
 (HPO:0001873) Thrombocytopenia 25638461 IBIS 224 / 7739
24
 (HPO:0011923) Decreased activity of mitochondrial complex I 25638461 IBIS 35 / 7739
25
 (HPO:0011924) Decreased activity of mitochondrial complex III 25638461 IBIS 22 / 7739
26
 (HPO:0008347) Decreased activity of mitochondrial complex IV 25638461 IBIS 31 / 7739