Ichthyosis linearis circumflexa, also known as Netherton Syndrome is a less common form of ichthyosis, an extremely rare genetic syndrome in which dead skin cells accumulate in thick, dry scales on your skin's surface. In older children and adults the scaling may have a distinctive circular pattern (ichthyosis linearis circumflexa). But in infants and younger children, the skin is more commonly red and scaly all over, lacking the distinctive circular pattern. People with this condition have hair that is fragile and breaks easily due to trichorrhexis invaginata, or “bamboo hair,” resulting in short sparse hair. Another characteristic of Netherton Syndrome is a predisposition to allergies, asthma, and eczema.