Leukonychia: What Can White Nails Tell Us?

Area of Science:

• Dermatology
• Internal Medicine

Background:

• Nail discoloration, specifically leukonychia (white nails), is common.
• Causes range from cosmetic factors to serious systemic diseases like liver or kidney failure.
• Accurate assessment of leukonychia is crucial for patient diagnosis.

Purpose of the Study:

• To present a combined classification system for leukonychia.
• To develop an efficient diagnostic algorithm for clinicians.

Main Methods:

• Review of existing morphological and anatomical classifications of leukonychia.
• Integration of these classifications into a novel diagnostic algorithm.

Main Results:

• Morphological classification categorizes leukonychia by white line distribution (total, partial, transversal, longitudinal).
• Anatomical classification identifies the source of white color (nail plate, nail bed, surface).
• A combined algorithm facilitates efficient clinical evaluation.

Conclusions:

• A unified approach combining morphological and anatomical features improves leukonychia assessment.
• The proposed algorithm aids clinicians in diagnosing the underlying causes of white nail discoloration.