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Hila
Melissa L. Rosado-de-Christenson, MD, FACR
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TERMINOLOGY

  • Definitions

    • Hilum: Small point of attachment of seed to its base or support (plural: hila)
    • Lung hilum
      • Point of connection between lung and mediastinum
      • Central area between mediastinum medially and lung laterally through which bronchi, vessels, and other structures course into lung

GENERAL ANATOMY AND FUNCTION

  • Anatomy

    • Function

      HILAR ANATOMY

      • Right Hilum

        • Left Hilum

          RADIOGRAPHY OF HILA

          • General Concepts

            • Frontal (PA/AP) Radiography

              • Lateral Radiography

                CT OF HILA

                • 6 Characteristic Axial Levels

                  HILAR LYMPH NODES

                  • Normal Lymph Nodes

                    • International Association for the Study of Lung Cancer (IASLC) Lymph Node Map

                      HILAR SIGNS

                      • Hilum Overlay Sign

                        • Hilum Convergence Sign

                          • Alteration of Hilar Height

                            • Increased Hilar Density

                              • Bilateral Hilar Enlargement, Lymph Nodes

                                • Bilateral Hilar Enlargement, Pulmonary Arteries

                                  • Unilateral Hilar Enlargement, Lymph Nodes

                                    • Unilateral Hilar Enlargement, Pulmonary Artery

                                      • Thick Intermediate Stem Line

                                        Related Anatomy
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                                        Related Differential Diagnoses
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                                        References
                                        Tables

                                        Tables

                                        TERMINOLOGY

                                        • Definitions

                                          • Hilum: Small point of attachment of seed to its base or support (plural: hila)
                                          • Lung hilum
                                            • Point of connection between lung and mediastinum
                                            • Central area between mediastinum medially and lung laterally through which bronchi, vessels, and other structures course into lung

                                        GENERAL ANATOMY AND FUNCTION

                                        • Anatomy

                                          • Function

                                            HILAR ANATOMY

                                            • Right Hilum

                                              • Left Hilum

                                                RADIOGRAPHY OF HILA

                                                • General Concepts

                                                  • Frontal (PA/AP) Radiography

                                                    • Lateral Radiography

                                                      CT OF HILA

                                                      • 6 Characteristic Axial Levels

                                                        HILAR LYMPH NODES

                                                        • Normal Lymph Nodes

                                                          • International Association for the Study of Lung Cancer (IASLC) Lymph Node Map

                                                            HILAR SIGNS

                                                            • Hilum Overlay Sign

                                                              • Hilum Convergence Sign

                                                                • Alteration of Hilar Height

                                                                  • Increased Hilar Density

                                                                    • Bilateral Hilar Enlargement, Lymph Nodes

                                                                      • Bilateral Hilar Enlargement, Pulmonary Arteries

                                                                        • Unilateral Hilar Enlargement, Lymph Nodes

                                                                          • Unilateral Hilar Enlargement, Pulmonary Artery

                                                                            • Thick Intermediate Stem Line