Pulmonary Hematoma

Epidemiology

  • Uncommon

Physiology

  • Traumatic hemorrhage into lung
  • May result from external trauma or secondary to surgical wedge/ segmental lung resection
  • Presence of hematoma may be masked by surrounding lung contusion

Diagnosis

  • CXR/Chest CT Pattern: oval/ round sharply-defined, smooth nodule (may be multiple)
    • Location: usually a peripheral, subpleural location
    • Calcification: none
    • Cavitation: air-fluid level may be seen (due to parenchymal laceration of traumatic lung cyst)

Treatment

  • Decrease in size over time (may persist for up to 4 months)

References

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