An iliopsoas abscess caused by Parvimonas micra: a case report
An iliopsoas abscess caused by Parvimonas micra: a case report
复制标题
DOI：
10.1186/s13256-019-2004-0
复制
发表时间：
2019-03-01
影响因子：
1
通讯作者：
Mukae, Hiroshi
中科院分区：
文献类型：
--
作者：
Sawai, Toyomitsu;Koga, Satoru;Mukae, Hiroshi
微小微单胞菌是一种革兰氏阳性厌氧菌，是腰肌脓肿的罕见病原菌。我们描述了一个病例的病人髂腰肌脓肿所造成的P. micra。一位81岁的亚裔男性，自前一天开始主诉发烧，到我科就诊。腹部电脑断层显示在右侧髂腰肌有一低密度肿块，提示腰肌脓疡。在电脑断层导引下经皮穿刺引流腰肌脓疡。脓肿和血液的微生物培养结果为微小丙酸杆菌阳性。然而，我们的患者没有已知的原发感染灶。根据这些发现，诊断为微小毕赤酵母引起的原发性腰肌脓肿，开始接受氨苄西林/舒巴坦1.5 g治疗，每8 h静脉给药一次。到第7天，患者的白色血细胞计数恢复正常。到第20天，他的C-反应蛋白水平降至0.35 mg/dl。结论厌氧菌引起的髂腰肌脓肿较为少见，尤其是微小并殖吸虫引起的髂腰肌脓肿。我们的病例显示，微小毕赤酵母菌可引起髂腰肌脓疡。因此，临床医师应注意微小毕赤酵母菌可能引起髂腰肌脓肿。
Background Parvimonas micra, a Gram-positive anaerobic coccus, is a rare pathogen for psoas abscess. We describe a case of a patient with iliopsoas abscess caused by P. micra. Case presentation An 81-year-old Asian man presented to our department with complaints of fever since the preceding day. Abdominal computed tomography revealed the presence of a low-density mass in the right iliopsoas muscle indicative of a psoas abscess. Computed tomography-guided percutaneous drainage of the psoas abscess was performed. Results of organism cultures of the abscess and blood were positive for P. micra. However, our patient had no known primary focus of infection. On the basis of these findings, a primary psoas abscess caused by P. micra was diagnosed, and treatment with ampicillin/sulbactam 1.5 g, administered intravenously every 8 h, was initiated. By day 7, the patient's white blood cell count normalized. By day 20, his C-reactive protein level was decreased to 0.35 mg/dl. Conclusion Iliopsoas abscesses caused by anaerobic bacteria are relatively rare, and iliopsoas abscesses caused by P. micra are especially rare. Our patient's case revealed that P. micra can cause iliopsoas abscess. Therefore, clinicians should be aware of the possibility that P. micra may cause iliopsoas abscess.