KMID : 0032220100220010119
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Annals of Dermatology 2010 Volume.22 No. 1 p.119 ~ p.124
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A Malignant Melanoma Associated with a Blue Nevus of the Lip
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Lee Hye-Young
Na So-Young Son Young-Min Kang Hong-Kyu Baek Jin-Ok Lee Jong-Rok Roh Joo-Young
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Abstract
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Blue nevi are characterized by a collection of pigment- producing melanocytes in the dermis. These lesions clinically present as well demarcated cerulean-blue or bluish black colored papules or plaques that usually measure less than 1 cm in diameter. They are typically found on the dorsal surface of the hands and feet or in the head and neck region; however, they are rarely found in the oral cavity. These lesions are usually benign and stable over time. However, malignant melanomas developing in or associated with a blue nevus (which is also called malignant blue nevus) have been only rarely reported. A malignant blue nevus might develop in a common blue or cellular blue nevus, a giant congenital nevus or in a nevus of Ota, or it may be malignant from the start. Malignant blue nevi most commonly are found on the scalp. A malignant blue nevus of the lip has not been previously reported in the medical literature. We report here on a patient with a malignant melanoma associated with a blue nevus of the lip. The malignant melanoma was presumed to have developed from a blue nevus that was present on the upper lip of a 50-year-old male. (Ann Dermatol 22(1) 119¡124, 2010)
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KEYWORD
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Blue nevus, Malignant blue nevus, Malignant melanoma, Upper lip
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