Air leaks localized with lung ventilation SPECT.

Area of Science:

• Pulmonology
• Thoracic Surgery
• Nuclear Medicine

Background:

• Recurrent spontaneous secondary pneumothorax in patients with severe chronic obstructive pulmonary disease (COPD) poses significant management challenges.
• Standard surgical interventions like pleurodesis and bullectomy may not always resolve persistent air leaks.

Observation:

• A 61-year-old male with severe COPD experienced recurrent right-sided pneumothorax.
• Despite thoracoscopic abrasion, bullectomy, and pleural decortication, a significant air leak persisted.
• Quantitative ventilation/perfusion SPECT and high-resolution CT fused with Tc Technegas imaging were employed to localize the air leak.

Findings:

• The fused imaging accurately identified the air leak originating not only from a bleb in the right upper lobe but also from subcutaneous emphysema in the thoracic wall.
• This unexpected finding in the thoracic wall was crucial for guiding subsequent management.

Implications:

• Integrated imaging techniques can precisely localize complex air leaks in the thorax, even when they extend beyond the lung parenchyma.
• Identifying thoracic wall involvement in air leaks can facilitate a shift towards conservative management, potentially avoiding more extensive surgery.
• This case highlights the value of advanced imaging in optimizing treatment strategies for challenging respiratory conditions like pneumothorax in COPD patients.