金黄色葡萄球菌性脑膜炎少见,由腰大肌脓肿引起的细菌性脑膜炎更为罕见,作者报道一例金黄色葡萄球菌性腰大肌脓肿引起的脑膜炎,经手术引流和抗菌素治疗完全恢复。病例报告:女性,59岁,因发冷发烧,头痛和下背部疼痛一周住院。检查:体温38.9℃,眼底阴性。颈强直,Brudzinski′s和Kernig′s征阳性,直腿抬高70°时轻度腰痛,腱反射对称活跃。腹部检查正常,T_2-L_2椎体轻度压痛。化验:WBC16,900/mm~3,中性白细胞90%。CSF压力为12cm水柱,WBC890/mm~3,中性白细胞70%,单核30%,RBC130/mm~3,糖3mg/dl,蛋白318mg/dl。CSF革兰氏染色显示多数中性白细胞和少数革兰氏阳性球菌,提 Staphylococcus aureus meningitis is uncommon and bacterial meningitis caused by psoas abscess is even rarer. The authors reported a case of meningitis caused by staphylococcus aureus psoas muscle abscess that was completely recovered by surgical drainage and antibiotic treatment. Case Report: Female, 59 years old, hospitalized for one week because of chilled fever, headache and lower back pain. Check: body temperature 38.9 ℃, fundus negative. Cervical rigidity, positive Brudzinski’s and Kernig’s syndrome, mild back pain when straight leg raised 70 °, tendon reflex symmetry active. Abdominal examination was normal, T_2-L_2 vertebral mild tenderness. Assay: WBC16,900 / mm ~ 3, 90% of neutrophils. CSF pressure of 12cm water column, WBC890 / mm ~ 3, 70% of neutrophils, mononuclear 30%, RBC130 / mm ~ 3, sugar 3mg / dl, protein 318mg / dl. CSF Gram staining showed that most neutrophils and a few Gram-positive cocci, mention