Kim Gun-Wook, Shin Kihyuk, You Hyang-Suk, Jin Hyun-Ju, Shim Woo-Haing, Kim Hoon-Soo, Ko Hyun-Chang, Kim Byung-Soo, Kim Moon-Bum
Department of Dermatology, Pusan National University School of Medicine, Busan, Korea.
Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
Ann Dermatol. 2018 Jun;30(3):331-334. doi: 10.5021/ad.2018.30.3.331. Epub 2018 Apr 23.
Labial melanotic macules (LMMs) are benign pigmented lesions that usually take the shape of flat asymmetrical macules with tan-brown to black color and variable size. Whereas the dermoscopic features of other pigmented skin lesions have been relatively well described, little is known about LMMs.
To describe the dermoscopic features and find typical and schematic dermoscopic patterns in LMMs.
A retrospective dermoscopic study was conducted on 80 lesions with histopathologically proved LMMs.
We described and defined, for the first time to our knowledge, landscape painting patterns found in 65 of 80 melanotic lesions (81.3%), characterized by parallel lines or circle lines, overlapping vessels with background brown pigmentation. The background brown pigmentations were observed in 74 of 80 lesions (92.5%), the parallel lines in 62 (77.5%), the circle lines in 20 (25.0%), and overlapping vessels in 69 (86.3%). The structureless black pigmentations were only presented in 26 of 80 (32.5%).
Dermoscopy can be useful for the clinical detection of LMMs, and "Landscape painting patterns" may represent a dermoscopic clue for the diagnosis of these lesions.
唇部黑色素沉着斑（LMMs）是良性色素沉着性病变，通常呈扁平不对称斑疹状，颜色从棕褐色到黑色不等，大小各异。虽然其他色素沉着性皮肤病变的皮肤镜特征已有相对详尽的描述，但对于唇部黑色素沉着斑却知之甚少。
描述唇部黑色素沉着斑的皮肤镜特征，并找出其典型和示意性的皮肤镜模式。
对80例经组织病理学证实为唇部黑色素沉着斑的病变进行回顾性皮肤镜研究。
据我们所知，我们首次描述并定义了在80例黑色素沉着性病变中的65例（81.3%）发现的山水画模式，其特征为平行线或环线、与背景棕色色素沉着重叠的血管。80例病变中有74例（92.5%）观察到背景棕色色素沉着，62例（77.5%）有平行线，20例（25.0%）有环线，69例（86.3%）有重叠血管。80例中仅有26例（32.5%）出现无结构的黑色色素沉着。
皮肤镜检查有助于唇部黑色素沉着斑的临床检测，“山水画模式”可能是诊断这些病变的皮肤镜线索。
