Abstract：
A 76-year-old woman was referred to our department because of high fever and bladder irritative symptoms. Computed tomography revealed the presence of a heterogeneous mass with indistinct borders on the left anterior wall of the bladder. The lesion contained a linear hyperdense shadow. We initially suspected malignancy, such as urachal carcinoma or soft-tissue sarcoma. However, upon review of previous computed tomography scans, it was confirmed that the linear hyperdense shadow had migrated from the intestinal tract to the bladder. Considering the possibility of abscess formation caused by a foreign body, we decided to perform a transurethral biopsy. The results of the pathological analysis showed abscess formation. The patient was diagnosed with perivesical abscess caused by accidental ingestion of a fish bone. Following the administration of antibiotics, the lesion markedly shrank. Although it is difficult to distinguish perivesical abscess from malignant disease, invasive treatment can be avoided by appropriate diagnosis based on imaging studies.
摘要：
一名76岁的妇女因高烧和膀胱刺激症状而被转诊到我们部门。计算机断层扫描显示膀胱左前壁上存在异质肿块，边界不清。病变包含线性高密度阴影。我们最初怀疑是恶性肿瘤，例如脐管癌或软组织肉瘤。然而,在回顾以前的计算机断层扫描后，证实线性高密度阴影已从肠道迁移到膀胱。考虑到异物导致脓肿形成的可能性，我们决定进行经尿道活检.病理分析结果显示脓肿形成。患者被诊断为因意外摄入鱼骨而引起的膀胱周围脓肿。在服用抗生素后，病变明显缩小。尽管很难区分膀胱周围脓肿和恶性疾病，通过基于影像学研究的适当诊断，可以避免侵入性治疗。
