# Delayed Massive Hemothorax From Traumatic Inferior Pulmonary Ligament Tear: A Case Report

## TL;DR

A rare case of delayed hemothorax caused by a tear in the inferior pulmonary ligament following trauma is reported.

## Contribution

This is the third reported case of traumatic hemothorax caused by inferior pulmonary ligament injury.

## Key findings

- A 64-year-old man developed delayed hemothorax due to a small tear in the inferior pulmonary ligament.
- The injury was confirmed during video-assisted thoracic surgery, and hemostasis was achieved.
- Only three cases of traumatic hemothorax from inferior pulmonary ligament injury have been reported.

## Abstract

Hemothorax is often caused by blunt or penetrating trauma, a medical procedure, or direct tumoral erosion. Traumatic hemothorax is usually a consequence of intrathoracic organ damage, such as the chest wall or lung parenchyma. Herein we present a very rare case of traumatic hemothorax caused by inferior pulmonary ligament injury. The patient was a 64‐year‐old man, and he got injured due to loss of consciousness during bicycle riding. Since the patient was in a shock state and bleeding continued, video‐assisted thoracic surgery was performed. We found that a small laceration of the inferior pulmonary ligament was a cause of hemothorax and haemostasis with soft coagulation was performed. The inferior pulmonary ligament injury is an extremely rare condition as a cause of traumatic hemothorax, and only two cases including the present case have been reported. We should consider inferior pulmonary ligament injury as one of the causes of traumatic hemothorax.

We present a very rare case of traumatic delayed hemothorax caused by inferior pulmonary ligament injury. The bleeding was from the small tear of the inferior pulmonary ligament.