Monomelic amyotrophy of a single upper limb termed “brachial monomelic amyotrophy” (BMMA) is a benign lower motor neuron disorder in the young, with male preponderance, insidious onset of atrophy and weakness, electromyographic evidence of neurogenic pattern without conduction block, slow progression followed by a stationary course.
Dr. Jitendra Kumar Pandit, Dr. Abhinav Sathe. Monomelic amyotrophy: A Case study. International Journal of Medical and Health Research, Volume 2, Issue 10, 2016, Pages 05-06