What is spinal stenosis? Spinal stenosis happens when the spaces in the spine narrow and create pressure on the spinal cord and nerve roots. The spinal cord is a bundle of nerves that comes out of the base of the brain and runs down the center of the spine. The nerve roots branch out from the cord. In spinal stenosis, the narrowing usually occurs over time.

What is ichthyosis? Ichthyosis is a group of skin disorders. It leads to dry, itchy skin that appears scaly, rough, and red. The symptoms can range from mild to severe. Ichthyosis can affect only the skin, but sometimes the disease can affect internal organs, too.

¿Qué es la ictiosis? La ictiosis es un conjunto de trastornos de la piel que ocasionan piel seca que pica y parece escamosa, áspera y roja. Los síntomas pueden variar desde leves a graves. Por lo general, la ictiosis solo afecta la piel, pero a veces también puede afectar los órganos internos.