label: Mitochondrial hypertrophy
label_lc: mitochondrial hypertrophy
description: "Enlargement of mitochondria. Mitochondrial hypertrophy is not discernible by light microscopy. By electron microscopy (EM), hypertrophic mitochondria have normal cristae and normal matrix density. In contrast, swollen mitochondria display swollen cristae and irregular matrix densities in EM."