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Conclusions
The presence of subcutaneous emphysema of a limb is disturbing and raises strong suspicions about the presence of gas gangrene, the consequences of which can be devastating. A fast and accurate diagnosis combined with appropriate, promptly initiated treatment will have a positive direct impact on the patient's limb and life prognosis. It is important to realize, as shown in our case report, that there are various causes of subcutaneous benign emphysema. An accurate and detailed history, an appropriate physical examination and a judgment that connects clinical and laboratory findings are essential and help prevent unnecessary radical treatment. If the underlying cause is not apparent, the diagnosis of factitious disorder must always be upheld.
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