皮肤或粘膜上长出坚硬的角质样物,有的高达10余厘米,宛如兽角,故称皮角,此系癌前期病变。本病较少见,发生在粘膜者更少见。预后不良。最近我们发现三例,其中一例为龟头皮角。患者47岁。因龟头背侧长出坚硬如骨的羊角状物50余天而就诊。50余天前患者发现龟头背侧有一小片角化斑,其上覆有皮屑,洗 The skin or mucous membranes grow hard horny samples, and some as high as 10 cm, like a beast, so called leather angle, the Department of precancerous lesions. The disease is less common in mucosa are more rare. Poor prognosis. Recently, we found three cases, one of which was a glans horn. Patient 47 years old. Due to the back of the glans to grow hard as the bones of the horn more than 50 days and treatment. More than 50 days ago, the patient found a small piece of keratosis on the dorsal side of the glans, which was covered with dander and washed