This Medcomic highlights some of the main features of multiple sclerosis (MS). Although the exact cause of MS is unknown, the disease is thought to occur as an immune-mediated attack on the central nervous system (CNS). As you can see in the illustration, the white blood cells are attacking the neuron and causing inflammation, demyelination, and axonal degeneration that can manifest through a wide variety of signs and symptoms. The age of onset for MS is usually between 15 and 50 years of age. It is the most common neurological disease causing permanent disability in young adults and is thought to affect more than 2.3 million people worldwide.
People with MS may experience paresthesias, blurred vision, optic neuritis (painful unilateral vision loss), clumsiness, muscle weakness, cognitive decline, and urinary dysfunction. Unfortunately, the neuron in the cartoon is also experiencing some of these symptoms. The Lhermitte sign is elicited when neck flexion produces electric shock-like sensations down the back and limbs.
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