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Lamellar ichthyosis, also known as ichthyosis lamellaris and nonbullous congenital ichthyosis, is a rare inherited skin disorder, affecting around 1 in 600,000 people. Presentation [ edit ]
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 ]
Netherton syndrome is a severe, autosomal recessive [1] form of ichthyosis associated with mutations in the SPINK5 gene. [2] [3] It is named after Earl W. Netherton (1910–1985), an American dermatologist who discovered it in 1958. [4]
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Mutations in the ABCA12 gene also cause another severe skin disorder, lamellar ichthyosis type 2. [8] [9] People with this disorder have red, scaly, plate-like skin covering most of their bodies. The ABCA12 mutations that cause this disorder substitute one amino acid (a building block of proteins) for another amino acid in the ABCA12 protein.
Eclabium (eversion of the lips), ectropion and alopecia (hair loss) are more common in congenital ichthyosiform erythroderma than in lamellar ichthyosis. [ 3 ] [ non-primary source needed ] Congenital ichthyosiform erythroderma can present very similarly to lamellar ichthyosis and they often share characteristics, though the two conditions can ...
A child with Harlequin-type ichthyosis.Visible plates on the skin, as well as a change in the appearance of the ears and fingers,which are symptoms of Harlequin-type ichthyosis. [10] Newborns with harlequin-type ichthyosis present with thick, fissured armor-plate hyperkeratosis. [11] Sufferers feature severe cranial and facial deformities.