ichthyosis vulgaris
Pronunciation: ik-thee-OH-sis vul-GAR-is
The most common form of inherited ichthyosis, presenting as fine, white scales primarily on extensor surfaces.
Full Definition
Ichthyosis vulgaris is an autosomal dominant genodermatosis characterized by generalized scaling due to filaggrin gene mutations. In pediatric patients, it typically manifests as fine, adherent scales on the extensor surfaces of the extremities, with characteristic sparing of flexural areas. The scaling often becomes more pronounced in dry, cold weather and may be associated with atopic dermatitis. Proper documentation includes distribution pattern, scale morphology, and associated features such as hyperlinear palms or keratosis pilaris.
Usage
Usage note: Distinguish from acquired ichthyosis, which typically develops later in life and may indicate underlying systemic disease.
In Context
- "The child presented with ichthyosis vulgaris showing typical fine scaling on the shins and forearms." — pediatric dermatology assessment
- "Family history revealed ichthyosis vulgaris in the father, confirming the autosomal dominant inheritance pattern." — genetic counseling documentation