Multimodal diagnostic tools in amyotrophic lateral sclerosis: insights from an illustrative case series
Background: ALS is a neurodegenerative disorder with a broad phenotypic spectrum. Diagnosis is challenging in non-classical presentations or early in the disease course. Beyond electromyography, complementary tests may provide evidence of lower motor neuron (LMN) and upper motor neuron (UMN) dysfunction and help exclud...