Intrapulmonary lymph nodes

Intrapulmonary lymph nodes are a type of intrathoracic lymph nodes. They can be quite common on routine CT examinations of healthy patients.


Radiographic features

CT: HRCT chest
  • around 6 mm in size (usually reported range around 3-8.5 mm) 1
  • most tend to be below the carinal level (i.e. lower lobes and middle lobe 4)
  • nodules may be oval, round, triangular, or trapezoidal
  • may have sharply defined borders
  • tend to be solid and homogeneous and without calcification
  • some nodules may show a discrete thin tag extending to the pleura
Anatomy: Thoracic
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Article information

rID: 25079
System: Chest
Section: Anatomy
Tag: stub, cases
Synonyms or Alternate Spellings:
  • Intra-pulmonary lymph nodes
  • Intra-pulmonary lymph node
  • Lymph nodes within the lung
  • Lymph nodes within the lungs

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Cases and figures

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    Case 1: perifissural nodule
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