Vocal fold polyp

Japanese: 声帯ポリープ - せいたいポリープ（英語表記）Vocal fold polyp

It is a broad-based or pedunculated edematous mass that occurs most frequently on the edge of the vocal cords. Its surface is smooth and often slightly redder than the surrounding normal mucosa, and it ranges in size from the size of a millet to large enough to cover almost the entire length of the vocal cords. There are various theories about its origin, but the currently accepted theory is that it is directly caused by vascular rupture due to circulatory disorders caused by vocal abuse, smoking, or local acute inflammation. Common symptoms include complaints of "hoarseness" and "fatigue when speaking."

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

声帯縁に好発する広基性または有茎性の浮腫性腫瘤をいう。表面は平滑で，周囲の正常粘膜に比べるとやや赤みをおびていることが多く，大きさはアワ粒大から，声帯のほぼ全長にわたるほど大きなものまでいろいろである。成因は諸説あるが，現在では，声の乱用や喫煙，局所の急性炎症などにもとづく循環障害による血管破綻（はたん）が直接の原因とする説が有力である。症状としては〈声がかれる〉〈声を出すと疲れる〉と訴えることが多い。

出典　株式会社平凡社世界大百科事典第２版について　情報

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