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[1]: 491 It is also known as bullous congenital ichthyosiform erythroderma of Siemens or ichthyosis exfoliativa. It is a genetic disorder with no known cure which is estimated to affect about 1 in 500,000 people.
Epidermolytic ichthyosis (EI), [a] is a severe form of dry scaly skin, that initially presents with redness, blisters, erosions, and peeling in a newborn baby. [5] [6] Hyperkeratosis typically develops several months later. [6]
Epidermolytic hyperkeratosis (also known as "Bullous congenital ichthyosiform erythroderma," [7] "Bullous ichthyosiform erythroderma," [8]: 482 or "bullous congenital ichthyosiform erythroderma of Brocq" [9]) is a rare skin disease in the ichthyosis family, affecting around 1 in 250,000 people.
Ichthyosis (also named fish scale disease) [1] is a family of genetic skin disorders characterized by dry, thickened, scaly skin. [2] The more than 20 types of ichthyosis range in severity of symptoms, outward appearance, underlying genetic cause and mode of inheritance (e.g., dominant, recessive, autosomal or X-linked). [3]
The first case of neutral lipid storage disease was reported by Maurice Dorfman when he treated two sisters with non-bullous ichthyosiform erythroderma in 1974. [2] His observations were then able to be confirmed with the emergence of other cases. As of 2018, fewer than 100 cases have been reported. [15]
Epidermolytic hyperkeratosis is a rare genodermatosis which is also referred to as disorder of cornification type 3 and bullous congenital ichthyosiform erthroderma, affecting almost 1 per 200,000 - 300,000 people. [18]
Congenital ichthyosiform erythroderma is an autosomal recessive genetic disorder. This means a child must inherit a defective pair of genes (one from each parent) to show the symptoms. Parents who are carriers of the defective genes show no symptoms but their children have a 25% chance of having the disease.
Most cases (approximately 75%) of collodion baby will go on to develop a type of autosomal recessive congenital ichthyosis (either lamellar ichthyosis or congenital ichthyosiform erythroderma). [5] In around 10% of cases the baby sheds this layer of skin and has normal skin for the rest of its life. [2] [5] This is known as self-healing ...