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

这种柄被称为疣，有软帽，为透明软。

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

例如，软瘤形疣；巨细胞瘤形囊样病变，状似皂泡样。