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What You Need to Know About Imaging in Fournier's Gangrene

For stable patients with suspected Fournier's gangrene, obtain a contrast-enhanced CT scan to confirm diagnosis and assess disease extent, but never delay surgical intervention to obtain imaging 1.

Imaging Modalities and Their Role

CT scan characteristics:

• Sensitivity approaching 90% and specificity of 93.3% for necrotizing soft tissue infections 1, 2
• Key findings include asymmetric fascial thickening, subcutaneous emphysema (the hallmark finding), soft tissue stranding, fluid collections, and abscess formation 3, 2
• Superior to radiography and ultrasound for evaluating disease extent and retroperitoneal spread 2
• Can identify the source of infection and guide surgical planning 3

Ultrasound as an alternative:

• Can be performed at bedside in unstable patients 1, 4, 5
• Useful when CT is unavailable or patient cannot be safely transported 1
• Does not require radiation or IV contrast 1

Critical Caveat: When NOT to Image

In patients with hemodynamic instability persisting after proper resuscitation, skip CT imaging and proceed directly to surgery 1. Imaging is not mandatory in emergent cases with clinical or hemodynamic impairment 1.

Where to Find Images

For educational purposes, you can find Fournier's gangrene images in:

• Medical textbooks on urology, emergency surgery, or infectious diseases
• Published case reports and pictorial reviews in medical journals 4, 3, 5
• Radiology teaching files at academic institutions
• Medical image databases with appropriate institutional access