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Superinfection of focal liver lesions after bile duct procedures
T Montvuagnard1, V Thomson, M Durieux
1Department of Radiology, hôpital de la Croix-Rousse, hospices civil de Lyon, Lyon, France. thibaut.montvuagnard@gmail.com
Objectives:
Pyogenic liver abscess is a rare condition in the general population. The source of infection is most often biliary, and more rarely gastrointestinal via the portal tract, or even hematogenic. Other than in special contexts (scarring after radiofrequency ablation), focal liver lesions are not a usual risk factor for hepatic abscesses in patients with a history of bile duct procedures (sphincterotomy, biliary stenting, biliary enteric anastomosis). MATERIALS AND METHOD - RESULTS: We report four cases of focal liver lesions (two patients with benign lesions of the biliary cyst type and two other patients with lesions due to pancreatic cancer) complicated by a superinfection in patients with a history of bile duct procedures. There were no predisposing factors other than a context of cancer or diabetes.
Conclusion:
Superinfection of a focal liver lesion should be considered when there is a suggestive clinical picture and a change in the appearance of the lesion in patients with a history of bile duct procedures in a context of cancer or diabetes.
Insights
Superinfection of focal liver lesions can occur in patients with a history of bile duct procedures, especially those with cancer or diabetes. This complication requires consideration in suggestive clinical cases.
Area of Science:
- Hepatology
- Infectious Diseases
- Oncology
Background:
- Pyogenic liver abscess is typically associated with biliary or gastrointestinal sources.
- Focal liver lesions are not commonly recognized risk factors for hepatic abscesses, particularly after bile duct interventions.
Observation:
- This study presents four cases of focal liver lesions (biliary cysts, pancreatic cancer) that became superinfected.
- All patients had a history of bile duct procedures.
- Predisposing factors were limited to underlying cancer or diabetes.
Findings:
- Focal liver lesions, including benign cysts and those related to pancreatic cancer, can become superinfected.
- A history of bile duct procedures is a significant factor in these cases.
- Cancer and diabetes are identified as key comorbidities.
Implications:
- Superinfection of focal liver lesions should be suspected in patients with a history of bile duct procedures, especially if they have cancer or diabetes.
- Changes in lesion appearance warrant further investigation for superinfection.
- This highlights a specific risk scenario for liver abscess development.
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