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Abstract：
Background: Agmination and/or satellitosis in pigmented blue lesions is a phenomenon rarely mentioned in the literature and not well known. This phenomenon can be expressed by several benign and malignant pigmented blue lesions, such as blue nevi, Spitz nevi, melanocytoma and melanoma. On this spectrum, dermoscopy, reflectance confocal microscopy (RCM) and dynamic Optical coherence tomography (D-OCT) represent non-invasive imaging technologies, which may help clinicians in the diagnosis of melanoma and non-melanoma skin cancers in daily clinical practice. Methods: Currently, in the literature there is a lack of new data about agminated blue lesions and blues lesions with satellitosis, as well as the lack of a recent and updated review of the literature about this topic. Therefore, considering that clinicians must be confident with the diagnosis of these rare skin lesions, we decided to carry out this work. Results: In this paper, four new cases of agminated pigmented cutaneous lesions were described. Moreover, a review of the current literature on this topic was performed. Conclusions: A clinical-pathological correlation is often needed to reach a correct diagnosis; currently, dermoscopy and non-invasive diagnostic techniques, such as reflectance confocal microscopy and optical coherence tomography, due to the depth of these skin lesions in the dermis, can only make a partial and limited contribution.
摘要：
背景：色素性蓝色病变中的聚集和/或satellitosis是文献中很少提及的现象，也不是众所周知的。这种现象可以表现为几种良性和恶性色素性蓝色病变，如蓝色痣，SpitzNevi,黑色素细胞瘤和黑色素瘤。在这个光谱上，皮肤镜,反射共聚焦显微镜（RCM）和动态光学相干断层扫描（D-OCT）代表非侵入性成像技术，这可能有助于临床医生在日常临床实践中诊断黑色素瘤和非黑色素瘤皮肤癌。方法：目前，在文献中，缺乏新的数据，有关急性蓝色病变和蓝色病变与satellitosis，以及缺乏有关该主题的最新文献综述。因此,考虑到临床医生必须对这些罕见皮肤病变的诊断充满信心，我们决定进行这项工作。结果:本文,描述了4例新出现的色素沉着皮肤病变。此外，我们对有关这一主题的现有文献进行了综述.结论：通常需要临床病理相关性才能达到正确的诊断；目前，皮肤镜检查和非侵入性诊断技术，如反射共聚焦显微镜和光学相干断层扫描，由于这些皮肤损伤在真皮中的深度，只能做出部分和有限的贡献。
