指节垫症状
介绍
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指节垫系关节伸侧皮肤纤维性增厚所致。往往有家族史，与遗传有关。表皮明显角化过度，棘层肥厚，真皮结缔组织增生，单个胶原纤维也可明显增粗。
病因病理
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指节垫是由什么原因引起的？
本病系指关节伸侧皮肤纤维性增厚所致。无自觉症状，病因不明，散在发生，往往有家族史，与遗传有关。
症状检查
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指节垫应该如何诊断？
1.最常见于近侧指间关节。发病年龄一般在15～30岁。
2.损害为扁平或隆起的限局性角化斑，表面光滑，发展缓慢，往往经过数月或数年才察觉。
3.组织病理示表皮明显角化过度，棘层肥厚。真皮结缔组织增生，单个胶原纤维也可明显增粗。
鉴别
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指节垫容易与哪些症状混淆？
根据发病部位及损害的特点，临床上即可作出诊断。有时需与职业性胼胝作鉴别，后者在各种职业中各有特殊发生部位。
预防
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指节垫应该如何预防？
无满意治疗方法。一般不主张手术，以免瘢痕形成影响手指功能。
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