2026 年 21 巻 3 号 p. 321-325
Objective: We report the case of a 75-year-old woman who presented with a hypoechoic liver mass and a two-week history of frequent urination, low-grade fever, and fatigue for 2 weeks.
Case report: A liver abscess was diagnosed based on an elevated inflammatory response and imaging findings, and was drained percutaneously. Klebsiella pneumoniae was isolated from both the urine and pus cultures, indicating an invasive infection secondary to a urinary tract source. The following day, the patient experienced ocular pain, blurred vision, and conjunctival hyperemia and was diagnosed and treated for endophthalmitis. After treatment, she became blind in the right eye; however, her vision in the left eye was preserved.
Conclusion: This case highlights that invasive liver abscess syndrome should be considered in patients with K. pneumoniae infection and that liver abscesses should be treated promptly in patients with extrahepatic symptoms.
