Abstract：
When the dermoscopy of squamous cell carcinoma and its precursors we differentiate among keratin-related, vascular, and pigment-related criteria. Non-pigmented actinic keratoses are characterized by the \"strawberry pattern\". Pigmented actinic keratosis shows a significant dermatoscopic overlap with lentigo maligna, but the presence of pigmented scales, erythema, and prominent follicles favors its diagnosis. Bowen\'s disease is characterized by clustered glomerular vessels, white-yellowish scales, and brown or grey dots arranged in lines in its pigmented variant. Finally, dermoscopy allows us to detect invasive squamous cell carcinoma in its early stages and differentiate it from its precursors. Furthermore, its presentation may vary depending on the degree of differentiation, with keratin-associated criteria predominating in well-differentiated tumors, while an atypical vascular pattern will predominate in poorly differentiated tumors.
摘要：
在进行鳞状细胞癌及其前体的皮肤镜检查时，我们区分与角蛋白相关的，血管,和颜料相关的标准。非色素光化性角化病的特征是“草莓图案”。色素性光化性角化病显示皮肤镜检查与恶性扁桃体明显重叠，但是色素鳞片的存在，红斑,和突出的卵泡有利于其诊断。Bowen病的特点是聚集的肾小球血管，白色黄色鳞片，和棕色或灰色的点排列在其色素变体中的线条。最后,皮肤镜检查使我们能够在早期发现浸润性鳞状细胞癌，并将其与前体区分开来。此外，它的表现可能会有所不同，取决于分化的程度，与角蛋白相关的标准在明确界定的肿瘤中占主导地位，而不典型的血管模式将在低分化肿瘤中占主导地位。
