Small Nodules

  • Kyung Soo Lee
  • Joungho Han
  • Man Pyo Chung
  • Yeon Joo Jeong
Chapter
First Online:
Part of the Radiology Illustrated book series (RADILL)

Abstract

Small nodules, usually less than 10 mm in diameter, are regarded to be centrilobular when the nodules are separated from pleural surfaces or the interlobular septa by a distance of several millimeters, usually centered 4–10 mm from the pleural or fissural surfaces or from interlobular septa [1, 2]. They are frequently associated with centrilobular branching nodular structures, thus forming the so-called tree-in-bud sign (Figs. 18.1 and 18.2) (see also Chap. 9). The small nodules represent lesions involving the small airways. However, vascular lesions involving the arterioles and capillaries may simulate the centrilobular small nodules and branching nodular structures (vascular tree-in-bud sign) [1, 3, 4] (Fig. 18.3).

Keywords

Small Nodule Pulmonary Sarcoidosis Pathology Comparison Bronchovascular Bundle Mycoplasma Pneumoniae Pneumonia 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Kyung Soo Lee
    • 1
  • Joungho Han
    • 2
  • Man Pyo Chung
    • 3
  • Yeon Joo Jeong
    • 4
  1. 1.Department of Radiology Samsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea, Republic of (South Korea)
  2. 2.Department of Pathology Samsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea, Republic of (South Korea)
  3. 3.Department of Medicine Division of Pulmonary and Critical Care Samsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea, Republic of (South Korea)
  4. 4.Department of RadiologyPusan National University HospitalBusanKorea, Republic of (South Korea)

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