婴幼儿尺桡骨远端正常X线表现——50例组织学大切片与X线片对照研究

50例婴幼儿尺桡骨远端组织学大切片与X线片对照研究表明:(1)正常婴幼儿尺桡骨远端先期钙化带的X线表现多种多样,充分认识这些表现可避免误诊;(2)Ranvier氏沟中的骨皮结构在X线片上可表现为干骺端两侧的刺样突起,系正常所见;(3)可根据X线片先期钙化带局限凸起的部位,判断骺软骨内血管所在部位。

Normal Radiographic Appearance of the Distal Ends of the Radius and Ulna-A Correlative Radiographic and Histologic Slab Study of the Wrists in 50 Infants

Based on a correlative radiographic and histologic slab study of the wrists in 50 infants who died of unrelated diseases, the author's chief conclusions are as follow: 1) On the wrist radiograph of the infant, bone bark in the Ranvier's groove may appear as a "thorn-like" bony process on the margins of the metaphysis of the radius and ulna. 2) The radiographic appearance of the provisional zone of calcification at the distal ends of the radius and ulna are variable on radiographs of normal wrists, and familiarity with these variations precludes incorrect diagnosis. 3) The locations of the partialy convex part of the provisional zone of calcificatio'n on the radiograph of the wrist correspond to where the vessels in the epiphyseal cartilage are located.