Ultraviolet-induced fluorescence dermoscopy in the diagnosis of scabies: The “ball sign”

A 35-year-old male agricultural worker presented with a 2-week history of generalized pruritus with marked nocturnal exacerbation. His wife and adolescent son reported similar symptoms. Pruritus predominantly involved the interdigital spaces, axillae, and groin. There was no history of fever, scaling, discharge, or bleeding.