NIC Esthetician Written ExamScientific ConceptsHard
A client presents with extremely dry, flaky skin, particularly on their lower legs, which exhibits a 'fish scale' appearance. They report that this condition worsens in cold, dry weather and has been present since childhood. Which of the following genetic disorders is most consistent with these symptoms?
- APsoriasis
- BEczema (Atopic Dermatitis)
- CIchthyosis Vulgaris
- DRosacea
Show answer & explanationAnswer & explanation
Correct answer: C. Ichthyosis Vulgaris
Ichthyosis Vulgaris is a chronic, inherited skin condition characterized by severely dry, scaly skin that often resembles fish scales. It typically appears in early childhood and is exacerbated by cold, dry environments.
Why the other options are wrong
- A. Psoriasis involves red, silvery scaled patches, but not typically a widespread 'fish scale' appearance from childhood.
- B. Eczema causes itchy, inflamed patches, but usually not the uniform 'fish scale' scaling associated with genetic ichthyosis.
- D. Rosacea primarily affects the face with redness and visible blood vessels, not body-wide dry scaling.
Ichthyosis Vulgaris
A common, inherited skin disorder characterized by dry, scaly skin resembling fish scales, due to a genetic defect affecting skin barrier function.
- Genetic condition, often appears in childhood.
- Causes severe dryness and fine, white scales.
- Worsens in cold, dry climates.
Memory trick: Genetics make fish scales, especially in cold.