School of Myology - Workshop - Class
Male child. 12 yo. Progressive muscular weakness.
HE shows fascicles and groups
of atrophic and hypertrophic fibers.
Type grouping is observed with
enzymatic techniques ATPase, with selective type I hypertrophy.
Denervation (neurogenic) atrophy, consistent
with a Spinal Muscular Atrophy (type III).