A curious case of vanishing pigmented spots resembling lentigines

Abstract

Exogenous pigmentation due to arthropods or coloring agents/dyes may be mistaken for melanocytic lesions. Dermoscopy is a useful tool for the evaluation of pigmented lesions. We discuss the dermoscopic and histopathological features in a case of pigmented spots mimicking lentigines caused by burrowing bug and review the pertinent literature on exogenous pigmentation.

Keywords

• Arthropod
• burrowing bug
• Cydnidae
• dermoscopy
• exogenous pigmentation