D2I2.
autoimmune

Lambert–Eaton myasthenic syndrome

Lambert–Eaton myasthenic (LEMS) is a rare disorder characterized by muscle weakness of the limbs. It is also known as myasthenic syndrome, Eaton–Lambert syndrome, and, when related to cancer, carcinomatous myopathy.

Underlined words are explained — tap any of them.

Plain-language summary adapted from Wikipedia. Not medical advice.