This bony stalk is called an exostosis, and it has a cap, made mostly of hyaline cartilage.

这种柄被称为生疣，有软帽，为透明软构。

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

例如，软瘤生疣；巨细胞瘤囊样病变，状似皂泡样。