Any nemaline myopathy in which the cause of the disease is a mutation in the TPM2 gene. The disease is congenital myopathy 23 (MONDO_0012240). Also known as: CAPM2, NEM4, TPM2 nemaline myopathy, cap myopathy 2, nemaline myopathy 4, nemaline myopathy 4, autosomal dominant, nemaline myopathy caused by mutation in TPM2, nemaline myopathy type 4.