偏振光皮肤镜图像技术对头面部肿瘤的诊断价值

Diagnostic value of image technology of polari-light dermoscopy in head and face tumors

目的探讨偏振光皮肤镜（polari—light dermoscopy，PD）图像分析技术在头面部肿瘤诊断中的价值。方法收集来院就诊患者，分别经临床肉眼和PD法诊断，后经组织病理确诊，将结果进行回顾分析。结果211例头面部肿瘤的PD法诊断指征显示出较好的特异性表现，正确诊断率达92．89％，明显高于肉眼诊断率69．67％。由于临床误诊与治疗不当而引起皮损复发占19．91％，发生在头面部肿瘤的前3位依次是：脂溢性角化病，黑素细胞肿瘤，基底细胞癌。结论PD法是一种无创性图像分析技术，尤其适合头面部肿瘤的早期诊断，对减少盲目活检、有效指导手术切除范围、选择合理的物理治疗方法以及皮损的康复与美容均有重要意义。

Objective To investigate the value of image analysis technology of polari-light dermoscopy （PD） in diagnosing head and face tumors. Methods We randomly collected the head and face tumors from the patients in this hospital, and then diagnosed them with naked eyes and PD, respectively. After making sure the diagnosis by histopathology, we analyzed the results retrospectively. Results We summarized the diagnostic signs of 211 head and face tumors on dermoscopy, which shown a great specificity. Its diagnosis rate reached to 92.89 % , obviously higher than that （69.67 % ）with naked eyes. Due to clinical misdiagnosis and erroneous treatment, the recurrence rate of skin lesions was 19.91%. The top 3 of head and face tumors, in turn, was seborrheic keratosis, melanocytic tumor and basal cell carcinoma. Conclusions PD is a non-invasive image analysis technology, which is especially applicable to the early diagnosis of head and face tumors. It can make sense in decreasing blind biopsy, directing surgical excision areas effectively, and selecting reasonable remedy, It also has great significance in the recovery and beauty of skin lesions.