Department of Surgery, Cathay General Hospital, Taipei City, 106, Taiwan.
Section of Neurosurgery, Department of Surgery, Chia-Yi Christian Hospital, Chia-Yi City, 600, Taiwan; Department of Biotechnology, Asia University, Taichung City, 41354, Taiwan.
Anaerobe. 2023 Apr;80:102711. doi: 10.1016/j.anaerobe.2023.102711. Epub 2023 Feb 1.
Brain abscesses mostly develop due to direct infection caused by a nearby infectious lesion or hematogenous spread and are rarely caused by an odontogenic infection. We report a 47-year-old woman who presented with high fever, disturbed consciousness, headache, and neck pain. Imaging studies revealed a ring-shaped enhanced mass in the left frontal lobe causing a mass effect and midline shift. Magnetic resonance spectroscopy revealed a peak alanine concentration of 1.5 ppm. Supraorbital keyhole surgery with abscess removal was performed, and a bacterial culture confirmed a diagnosis of Parvimonas micra infection. After undergoing 6-week antibiotic treatment, the patient's symptoms resolved completely. No recurrence of abscess was observed during the follow-up period. Although brain abscess caused by P. micra has rarely been reported, an odontogenic origin should be investigated, especially when a patient has a history of periodontal infection or tooth extraction.
脑脓肿主要由邻近感染病灶直接感染或血行播散引起，很少由牙源性感染引起。我们报告了一例 47 岁女性，因高热、意识障碍、头痛和颈部疼痛就诊。影像学检查显示左额叶有环形强化肿块，引起占位效应和中线移位。磁共振波谱显示丙氨酸峰浓度为 1.5ppm。行眶上锁孔手术切除脓肿，细菌培养证实为小韦荣球菌感染。经过 6 周的抗生素治疗，患者症状完全缓解。随访期间未观察到脓肿复发。虽然由小韦荣球菌引起的脑脓肿很少见，但应调查其牙源性来源，尤其是当患者有牙周感染或拔牙病史时。
