 朗读者：张恒老师  Lobules at the pleural surface may have a variety of appearances, but they are often longer than they are wide, resembling a cone or truncated cone. Within the central lung, thickened septa usually outline lobules that are 1 to 2.5 cm in diameter and appear polygonal, or sometimes hexagonal, in shape (Fig. 3-2). Lobules delineated by thickened septa commonly contain a visible dotlike or branching centrilobular pulmonary artery. The characteristic relationship of the interlobular septa and centrilobular artery is often of value in identifying each of these structures. FIGURE 3-2 Smooth interlobular septal thickening in patient with pulmonary edema. A lobule in the anterior lung outlined by interlobular septa (yellow arrows) shows dotlike pulmonary artery branches in its center (red arrows). Small nodular opacities (blue arrows) seen in relation to some septa represent pulmonary vein branches seen in cross section. Notes: 1. lobule ['lɒbju:l] n.耳垂; 小叶 2. pleural ['plʊərə] adj. 胸腔; 胸膜的 3. truncated cone [ˈtrʌŋˌketɪd kon] 截头圆锥体 4. polygonal [pə'lɪɡənl] adj. 多角形的，多边形的 5. hexagonal [hɛkˈsæɡənəl] adj. 六角形的，六边形的 6. centrilobular pulmonary artery 肺小叶中心动脉 翻译：妙然 【HRCT findings：Interlobular Septal Thickening 小叶间隔增厚在HRCT上的表现】胸膜表面的肺小叶形态多变，但通常长大于宽，像圆锥体或截头的圆锥体。在肺部中央，增厚的小叶间隔常勾勒出肺小叶的轮廓，直径约1-2.5cm，呈多边形或六边形。 增厚的小叶间隔勾勒出的肺小叶常包括点状或分支状的肺小叶中央动脉。小叶间隔与小叶中央动脉的特殊关系常用来证明肺小叶的结构。 来源：每天朗读一段医学影像学英语文章 圈主 深圳市人民医院放射科副主任医师杨敏洁 |
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