With the advent of enzyme histochemistry, which this field and
simplistic theories will be expanded or revealed hitherto unseen
pathological differences discarded. between muscle disorders, muscle
biopsy assumed Diseased muscle cells, as any other cell type, show an
important diagnostic role. The investigation is easily only limited
morphological changes. However bizarre, performed and is being
undertaken with increasing very few of these changes, if any, are
pathognomonic of frequency. Nevertheless there is still a tendency to a
single disease. The exact significance of microscopic regard its
interpretation as highly specialized and out- findings is to a large
extent determined by their clinical side the province of the general
histopathologist. In this context. Thus, although this is an atlas, it
is definitely atlas I have tried to lift the veil of neuropathological
not designed to promote 'spot' histological diagnoses. I mystique and to
describe and illustrate the basic have aimed to provide a guide to
pathological reactions reactions of muscle cells. of muscle which will
be useful to the practising histo- Interpretation of the biopsy depends
not only upon pathologist and all students of neuro-muscular disease.
recognition of morphological abnormalities, but upon I hope that
recognition of the lack of specificity of understanding why they occur.
Throughout the atlas I individual morphological features will encourage
the have attempted to correlate morphological changes . close
clinico-pathological correlation which is essential with pathogenetic
mechanisms.