骨可根据形状分类，有长骨、短骨、扁骨、不规则骨和含气骨。
Bones may be classified according to their shape. There are long bones, short bones, flat bones, irregular bones and pneumatic bones.
目的：评价螺旋CT三维成像技术在扁骨和不规则骨中的诊断作用。
Objective:To evaluate the usefulness of three-dimensional (3D) helical CT in the lesions of flat bones and irregular bones.
请看这个颅骨的标本，我们的颅骨由23块形状大小不同的扁骨和不归则骨构成。
Look at the skull of specimens, our skull shape and size from the 23 different flat bone and the bone structure not owned.
报告4例全身性骨纤(选自一组356例骨纤维异常增殖症，发病率约占1%)，3例以病理证实，病变侵犯全身所有长、短、扁骨和不规则骨。
This is to report 4 cases of systemic fibrous dysplasia selected from a group of 356 cases of the disease with a incidence of 1%. 3 of them were proved pathologically.
报告4例全身性骨纤(选自一组356例骨纤维异常增殖症，发病率约占1%)，3例以病理证实，病变侵犯全身所有长、短、扁骨和不规则骨。
This is to report 4 cases of systemic fibrous dysplasia selected from a group of 356 cases of the disease with a incidence of 1%. 3 of them were proved pathologically.
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