Pigmented Rings With Central Clearing: A Dermoscopic Feature of Melasma

Area of Science:

• Dermatology
• Dermatopathology
• Medical Diagnostics

Background:

• Melasma is a common facial pigmentary disorder.
• Accurate diagnosis of melasma is challenging due to its varied appearance and overlap with other conditions.
• Dermoscopy is a valuable tool for in vivo skin lesion examination.

Purpose of the Study:

• To introduce a novel dermoscopic feature: pigmented rings with central clearing (PRCC).
• To evaluate the diagnostic utility of PRCC in melasma.
• To assess the ability of PRCC to differentiate melasma from other facial pigmentary disorders.

Main Methods:

• Dermoscopic images of melasma and similar conditions were analyzed.
• The presence and characteristics of PRCC were documented.
• Statistical analysis was performed to determine the significance of PRCC in diagnosing melasma.

Main Results:

• The study identified pigmented rings with central clearing (PRCC) as a distinct dermoscopic finding.
• PRCC was observed in a significant proportion of melasma cases.
• PRCC demonstrated potential in distinguishing melasma from other facial pigmentary disorders.

Conclusions:

• Pigmented rings with central clearing (PRCC) represent a novel and potentially useful dermoscopic feature for melasma diagnosis.
• This finding may improve the accuracy and efficiency of differentiating melasma from other facial dermatoses.
• Further research is warranted to validate PRCC in larger, diverse populations.