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KMID : 1141320230380030215
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Kosin Medical Journal
2023 Volume.38 No. 3 p.215 ~ p.218
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Dermoscopic features of an unusual case of targetoid hemosiderotic nevus
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Jeong Sun-Mun
Jung Jang-Hwan
Kwon Do-Ik
Seong Seol-Hwa
Jang Ji-Yun
Park Jong-Bin
Jang Min-Soo
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Abstract
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Targetoid hemosiderotic nevus (THN) is a rare variant of melanocytic nevus, characterized by a sudden development of a targetoid ecchymotic halo around a pre-existing nevus. THN clinically raises concern for malignant transformation due to its abrupt change in color and size. THN should be distinguished from other diseases showing a peripheral halo, including targetoid hemosiderotic hemangioma, halo nevus, and Meyerson nevus. Dermoscopy can help clinicians to differentiate THN from these diseases. The typical dermoscopic features of THN are known to be divided into two distinctive areas: the central melanocytic area and the peripheral ecchymotic area. In our case, dermoscopy revealed a novel bull’s eye pattern composed of a central area with characteristic features of benign melanocytic nevus, an intermediated white circular ring, and a peripheral milky red area. When a sudden change occurs in a pre-existing nodule showing targetoid features, dermoscopy should be considered before conducting a biopsy or surgical intervention.
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KEYWORD
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Case reports, Dermoscopy, Targetoid hemosiderotic nevus, Traumatized nevus
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FullTexts / Linksout information
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Listed journal information
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