Here's what rhymes with myasthenia.

Consider these alternatives

erythematosus / diagnosis autoimmune / toimmune colitis / pericolitis rheumatoid / avoid sclerosis / diagnosis toxoplasmosis / tuberculosis degenerative / generative rheumatism / given endometriosis / tuberculosis schizoaffective / effective pompe / want spondylitis / discospondylitis scoliosis / diagnosis amiodarone / known psoriatic / dramatic parkinsonism / living dexamethasone / testimony