Stark P, Watkins G E, Hildebrandt-Stark H E, Dunbar R D
Radiology. 1987 Oct;165(1):143-4. doi: 10.1148/radiology.165.1.3628759.
Eight hundred computed tomographic (CT) scans of the chest were reviewed, and 12 cases of episternal ossicles were found. Eight persons had paired ossicles, and four had unilateral ossicles. The overall frequency in the study population was 1.5% (men, 1.4%; women, 1.7%). Episternal ossicles represent a normal variant and should be distinguished from fracture fragments, sequestra, foreign bodies, calcified lymph nodes, or vascular calcifications.
回顾了800例胸部计算机断层扫描(CT),发现12例胸骨小骨。8人有双侧小骨,4人有单侧小骨。研究人群中的总体发生率为1.5%(男性为1.4%;女性为1.7%)。胸骨小骨是一种正常变异,应与骨折碎片、死骨、异物、钙化淋巴结或血管钙化相鉴别。