Accessory fissures of the lung

Dr Henry Knipe et al.

Accessory fissures of the lung usually occur at the borders of bronchopulmonary segments. They are common normal variants but are less commonly seen on imaging. 

Some of the more common accessory fissure include 1:

Differential diagnosis

General imaging differential considerations include:

Chest x-ray
Thoracic anatomy
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Article information

rID: 22233
System: Chest
Section: Anatomy
Synonyms or Alternate Spellings:
  • Accessory pulmonary fissure
  • Accessory pulmonary fissures

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Cases and figures

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    Azygos fissure
    Case 1: azygous lobe and fissure
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    Case 2: inferior accessory fissure
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