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. 2016 Aug 10;6:30610. doi: 10.1038/srep30610

Table 2. Summary of mitochondrial ultrastructural abnormalities identified in patient skeletal muscle biopsies.

Patient # Type I PCI Type II PCI Linearization and geometrical features Concentric cristae Compartmentalisation Nanotunneling Hyperbranching/hyperfusion Projections
1 +++ ++
2 + +
3 +++ + +++
4 + +++ ++
5 + ++ +
6 + ++ +
7 +++ +++ +++

PCI: Paracrystalline inclusion; +: Few; ++: Frequent; +++: Very frequent; −: none.