What is harlequin ichthyosis? Harlequin ichthyosis is a severe inherited form of ichthyosis that presents at birth as hard, thickened armour-like plates of skin covering the entire body. Harlequin ichthyosis is also called harlequin-type ichthyosis, and harlequin fetus [1]. Note that harlequin syndrome refers to a different condition characterised by asymmetrical, progressive, and segmental sweat loss (also known as progressive isolated segmental anhidrosis), and to unilateral sweating and ... Harlequin Fetus is a rare and severe genetic disorder that affects newborns, causing distinct and often life-threatening skin abnormalities. The condition, also known as Collodion Baby, results in thick, scaly skin that cracks and splits, leading to complications such as infections and dehydration. Though rare, understanding this condition is crucial for medical professionals and expecting parents who may be at risk. This article delves into the harlequin fetus causes, symptoms, diagnosis ... Harlequin ichthyosis is a rare, genetic skin disorder that affects newborns' entire face and body with thick, scaly plaques. It can cause breathing, feeding, and hearing problems, and requires intensive care and medication. Harlequin ichthyosis is the most severe form of autosomal recessive congenital ichthyosis. Harlequin ichthyosis is characterized by a profound thickening of the keratin layer in fetal skin.