Also found in: Dictionary, Thesaurus, Encyclopedia.
ichthyosis congenita, ichthyosis fetalis
ichthyosis fetalis(1) Harlequin-type ichthyosis.
(2) Autosomal recessive congenital ichthyosis, see there.
ichthyosis(ik?the-o'sis) [? + osis, condition]
A mild nonhereditary form is called winter itch. This is often seen on the legs of older patients, esp. during dry weather during the winter months. It may be more prevalent in those who bathe frequently, thus causing excessive dryness of the skin.
The application of lotions or ointments that soften and soothe the skin provide symptomatic relief for all forms of ichthyosis. Dry scales can be removed by applying a combination of 6% salicylic acid in a gel containing propylene glycol, ethyl alcohol, hydroxy propylene cellulose, and water. This is most effective when applied to moistened skin at night and covered with an occlusive dressing. Soaps should be used sparingly.
ichthyosis congenitaHarlequin fetus.
ichthyosis fetalisHarlequin fetus.
lamellar ichthyosis of newborn
The second type is sex-linked ichthyosis vulgaris. It is present only in males and is transmitted by the female as a recessive gene. Onset of scattered large brown scales is seen in early infancy. The scalp may be involved, but the face is spared except for the sides and in front of the ear. There is little tendency for this condition to improve with age.