Abstract：
A collision tumour (CT) is a neoplastic lesion comprised of two or more distinct cell populations that maintain distinct borders. Mostly, these are incidental findings in skin biopsies, whose pathologic mechanism and prevalence remain unknown, with few references among literature. Here, we present a retrospective study of CT, diagnosed by a dermatopathologist in our hospital between 2019-2022. Lesions have been defined individually and organized into three categories: benign-benign (BB), benign-malignant (BM) and malignant-malignant (MM). A total of 108 CT were diagnosed (1,4% of the biopsies from the dermatopathologist during this period), from which BM was the most frequent collision (48,5%). Globally, basal cell carcinoma (BCC) was the main malignant lesion and melanocytic nevus (MN) the main benign lesion. We have used the software Stata 14.2 in order to analyse results, and we have detected a statistically significant difference between age and collision type.
摘要：
碰撞肿瘤(CT)是由两个或更多个保持不同边界的不同细胞群组成的肿瘤病变。大多数情况下,这些是皮肤活检中的偶然发现，其病理机制和患病率尚不清楚，文献中参考文献很少。这里,我们对CT进行了回顾性研究，2019-2022年间由我们医院的皮肤科医生诊断。病变已单独定义并分为三类：良性-良性（BB），良恶性（BM）和恶性-恶性（MM）。总共诊断了108例CT（在此期间，皮肤科医生的活检率为1.4％），其中BM是最常见的碰撞(48,5%)。全球范围内,基底细胞癌（BCC）是主要的恶性病变，黑素细胞痣（MN）是主要的良性病变。我们使用了Stata14.2软件来分析结果，我们发现年龄和碰撞类型之间有统计学上的显著差异。
