When nerve cells don’t end up in the right place during brain development, it can cause periventricular heterotopia —a ...

Rare skin disorders, though often overlooked, affect millions of people worldwide, with some conditions being so rare that only a handful of cases are reported each year. These conditions ...

Harlequin ichthyosis affects just a handful of newborns each year in the US, but the condition is unmistakable, marked by a ...

The genetic disease harlequin ichthyosis affects the transport of fats within the skin, resulting in hard, scalelike plaques ...

X-linked ichthyosis, a rare skin condition caused by a genetic deletion, is associated with increased risks of neurodevelopmental, mood, and cardiac disorders, including arrhythmias such as atrial ...

Poliosis is a rare condition where hair follicles lack pigment, often seen in piebaldism, vitiligo, and alopecia areata. It's ...

Epidermodysplasia verruciformis (EV) is sometimes called "tree-man disease" or "human tree disease." It's a very rare syndrome that causes bark-like lesions to grow on your skin.

The FDA has approved Sanofi and Regeneron’s Dupixent as a treatment for adults with bullous pemphigoid, a rare chronic autoimmune skin condition that causes severe itching, painful blisters and open ...