作者研究了2个实验室4年中收集的128份良性角化病的组织切片。观察一些组织学特征如细胞内水肿、鳞状窝、基底样细胞或鳞样细胞(Squamoid cell)增生、核周晕,梭形细胞或角朊细胞异型性等的出现频率。研究的皮损包括病毒性疣、脂溢性角化,外毛根鞘瘤、返卷性毛囊角化症(Inverted follicular keratosis)、尖锐湿疣、纤维上皮性息肉、鸡眼、放射性皮炎、结节性痒疹、表皮痣和皮肤纤维瘤。作者研究大量发育良好的良性表皮增生疾病 The authors studied 128 tissue sections of benign keratoses collected in 2 laboratories over 4 years. The frequency of occurrence of some histological features such as intracellular edema, squamous cell, basal-like or squamoid cell proliferation, perinuclear haloes, spindle cells or keratinocyte atypicality was observed. The lesions studied included viral warts, seborrheic keratoses, outer hair root sheath tumors, inverted follicular keratosis, condyloma acuminatum, fibroepithelial polyps, corns, radioactive dermatitis, and prurigo nodularia. , epidermal nevus and dermatofibroma. The authors studied a number of well-developed benign epidermal hyperplasia diseases