神经纤维瘤的结构: 神经纤维瘤是神经鞘膜组织的增生,常常有粘液瘤样病变。偶尔也可恶变成为粘液肉瘤或纤维肉瘤。神经纤维瘤的周界与被膜常不完整,病变组织与周围的皮肤以及其他组织,甚至神经混合在一起。肿瘤中常可见有神经纤维散布,也有时看不见神经而只见到不规则的纤维脂肪组织团块。这种纤维粘液瘤样浸润也可以波及真皮。丛状神经纤维瘤(Plexiformneurofibromata)表面的皮肤常增厚,脆弱而无张力。面部丛状神经纤维瘤中含有丰富的扩张 The structure of neurofibroma: Neurofibroma is a hyperplasia of nerve sheath tissue, often with myxomatous lesions. Occasionally hateful turns into mucinous sarcoma or fibrosarcoma. Neurofibroma often has incomplete borders with the capsule, and the lesion is mixed with the surrounding skin and other tissues, even the nerves. Nerve fiber dispersions are often seen in tumors. Sometimes nerves are not visible but irregular fibrous masses are seen. This fibro myocytoma-like infiltration can also affect the dermis. The skin on the surface of Plexiformneurofibromata often thickens, is weak and has no tension. Fascial plexus neurofibroma is rich in expansion