Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Nagano, Japan.
Dermatology. 2010 Aug;221(1):78-83. doi: 10.1159/000305435. Epub 2010 May 28.
To date, little is known about the dermoscopic features of pigmented poromas.
Twelve cases of pigmented poromas examined by dermoscopy at the Department of Dermatology, Shinshu University Hospital (Matsumoto, Japan), between January 2000 and February 2009 were collected. Retrospectively, digital dermoscopic images were evaluated for the presence of dermoscopic structures.
Vascular structures were observed in 8 of 12 cases. Hairpin vessels were found in 3 cases. Most were elongated and irregularly shaped. Polymorphous vessels were observed in 3 cases, of which 2 showed combinations of dotted vessels and linear-irregular vessels and 1 combinations of hairpin vessels and glomerular vessels. Arborizing vessels were observed in 2 cases. Globule-like structures occurred in 7 cases. Globule-like structures and arborizing vessels coexisted in 2 cases. Comedo-like openings were observed in 3 cases, all of which were accompanied by hairpin vessels.
Pigmented poromas mimic a number of skin tumors, including pigmented basal cell carcinomas, seborrheic keratosis and malignant melanoma, because they present various clinical, dermoscopic and histopathological features.
迄今为止，人们对色素性汗孔瘤的皮肤镜特征知之甚少。
收集了 2000 年 1 月至 2009 年 2 月期间在日本信州大学医院皮肤科接受皮肤镜检查的 12 例色素性汗孔瘤病例。回顾性地对数字皮肤镜图像进行评估，以观察是否存在皮肤镜结构。
在 12 例病例中，有 8 例观察到血管结构。在 3 例中发现发夹状血管。大多数血管呈拉长状和不规则形状。在 3 例中观察到多形血管，其中 2 例显示点状血管和线性不规则血管的组合，1 例显示发夹状血管和肾小球状血管的组合。在 2 例中观察到树枝状血管。在 7 例中出现球状结构。在 2 例中，球状结构和树枝状血管共存。在 3 例中观察到粉刺样开口，均伴有发夹状血管。
色素性汗孔瘤因其具有各种临床、皮肤镜和组织病理学特征，与色素性基底细胞癌、脂溢性角化病和恶性黑色素瘤等多种皮肤肿瘤相似。
