Year: 2025
Type: article
Study design: Case Report
Abstract: , commonly presenting with pruritic lesions such as papules and burrows. While typical scabies lesions are well-documented, atypical presentations can complicate diagnosis. This case report describes an unusual manifestation of scabies presenting as annular plaques. A 50-year-old male with no significant medical history presented with a pruritic rash, including well-defined annular plaques on his thighs. Dermoscopic examination revealed the characteristic "deltaplane" sign and a translucent mite body, consistent with scabies. UV dermoscopy further confirmed the diagnosis with the "ball sign," highlighting the mite's fluorescence. The patient received two doses of oral ivermectin, leading to the complete resolution of pruritus and lesions within 10 days. The rapid resolution and clinical findings led to the diagnosis of atypical scabies. This case highlights the importance of considering atypical scabies in the differential diagnosis of annular plaques and underscores the value of dermoscopy, particularly UV dermoscopy, in enhancing diagnostic accuracy and treatment monitoring in scabies.
Source: Cureus
DOI: 10.7759/cureus.81785
Authors: Aimane Zaim, Hanane Baybay, Fatima Zahra Mernissi
Institution: Centre Hospitalier Universitaire Hassan II
Language: English
Subfield: Infectious Diseases
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4409196595