Fig. 2
From: Polyglucosan body myopathy 1 may cause cognitive impairment: a case report from China
Morphological characteristics of skeletal muscle. a Staining of cryostat sections of the biceps with periodic acid-Schiff (PAS) shows that aberrant PAS-positive material (arrow) accumulates in numerous fibres. b Aberrant storage material is resistant to treatment with amylase (arrows). c The accumulated material can be ubiquitinated by immunohistochemistry with an anti-ubiquitin antibody (arrows)