Let's start with the most common benign tumor, which is an osteochondroma and commonly affects males under 25 years.

让我们从最常见的良性肿瘤开始，即骨软骨瘤，多见于25岁以下的男性。

So in osteochondroma, a tumor arises from the growth plate, and it typically results in a lateral bony projection.

因此在骨软骨瘤中，肿瘤起源于生长板，通常产生一个侧面的骨性突起。

For example, osteochondroma cause exostoses, while the giant cell tumor forms a multicystic bone lesions that look like soap bubbles.

例如，骨软骨瘤形成外生骨疣；骨巨细胞瘤形成多囊样骨病变，状似皂泡样。