Differentiating solar lentigines from post‐inflammatory hyperpigmentation with hyperspectral imaging: A pilot study

Compared with solar lentigines, PIH spots displayed higher haemoglobin content and Δa* values and lower Δb* values. To strengthen these preliminary findings, further clinical studies need to be conducted on a larger cohort, aiming at confirming the benefit of HSI in accurately differentiating these two skin pigmentation disorders to support clinical assessment.