Chronic inflammatory demyelinating polyneuropathy (CIDP) is a neurological disorder characterized by progressive weakness and impaired sensory function in the legs and arms due to nerve damage. It can affect individuals of any age but is more common in adults, often presenting with symptoms such as tingling, numbness, and muscle weakness.

Primary immunodeficiency (PI) consists of a group of disorders where part of the body’s immune system is missing or functions improperly, leading to increased infections. These disorders can affect individuals of any age, often presenting with frequent, severe, or unusual infections.

Alpha-1 antitrypsin deficiency (AATD) is a genetic disorder that can lead to lung and liver disease, often manifesting in symptoms such as shortness of breath and jaundice. This disorder can affect individuals of all ages, but typically presents in adults with a higher prevalence of lung issues, especially smokers.

Uveitis is an inflammation of the uvea, the middle layer of the eye, which can cause redness, pain, blurred vision, and sensitivity to light. It can affect people of any age, but is most commonly seen in young and middle-aged adults.

Thyroid eye disease is an autoimmune condition associated with Graves’ disease that leads to inflammation and swelling of the eye tissues, causing symptoms such as bulging eyes, redness, and double vision. It primarily affects adult women who are diagnosed with thyroid disorders.

Neuromyelitis optica spectrum disorder (NMOSD) is an autoimmune disease that primarily targets the optic nerves and spinal cord, leading to symptoms such as vision loss, weakness, and paralysis. This disorder can affect individuals of any age, but is more frequently seen in women and commonly presents in adulthood.

Stiff-person syndrome (SPS) is a rare neurological disorder characterized by muscle stiffness and spasms, affecting posture and movement. It can occur in people of any age, but is more frequently diagnosed in women, often manifesting in middle adulthood.

Polyneuritis, also known as multiple peripheral neuropathy, is a condition characterized by inflammation affecting multiple peripheral nerves throughout the body, leading to symptoms such as muscle weakness, numbness, tingling, and pain. It can affect individuals of any age, but symptoms often arise due to underlying causes including infections, toxins, and nutritional deficiencies.

Neuromyelitis optica spectrum disorder (NMOSD) is a rare autoimmune disease that primarily targets the optic nerves and spinal cord, causing symptoms such as vision loss, paralysis, and muscle weakness. It can affect individuals of any age, but is more common in women and often manifests in adulthood.

Myasthenia gravis (MG) is a chronic autoimmune disorder that causes weakness in the skeletal muscles, which worsens after periods of activity and improves after rest. It can affect individuals of any age and often presents with symptoms such as drooping eyelids, double vision, and difficulty swallowing.