Monarch Disease Ontology identifier MONDO_0009725 (nemaline myopathy 2) is an autosomal recessive inherited myopathy caused by mutations in the NEB gene. It is characterized by generalized hypotonia and skeletal muscle weakness. Also known as: NEB nemaline myopathy, NEM2, nemaline myopathy 2, autosomal recessive, nemaline myopathy caused by mutation in NEB, nemaline myopathy type 2.