Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc
Journal website

Case Report

Volume 13, Number 8, August 2022, pages 391-395

Unusual Case of Non-HIV Patient With Multifocal Pyomyositis: Developed on Appropriate Antibiotic Therapy


Figure 1.
Figure 1. CT scan of the abdomen and pelvis with IV contrast: (a) On admission, no abscess was found; (b) At 10th day of admission, right psoas abscess (arrow) was observed. CT: computed tomography; IV: intravenous.
Figure 2.
Figure 2. CT scan of chest with IV contrast revealed the abscess on the left pectoral major muscle (arrow). CT: computed tomography; IV: intravenous.
Figure 3.
Figure 3. T2-weighted fat suppression image of lumbar spine MRI showed marrow edema involving L1 and L2 vertebral bodies suggesting osteomyelitis (arrows). Clinically, there were no signs of cord compression. MRI: magnetic resonance imaging.


Table 1. Clinical Laboratory Results
MeasureInitial laboratory results on admissionReference range
White blood cell count (per µL)22,9004,000 - 11,000
Red blood cell count (per µL)5,210,0004,500,000 - 5,900,000
Absolute neutrophil count (per µL)20,8401,800 - 7,500
Platelet count (per µL)188,000150,000 - 400,000
Hemoglobin (g/dL)12.913.5 - 17.5
Sodium (mmol/L)141135 - 145
Potassium (mmol/L)4.13.5 - 5.4
Chloride (mmol/L)9898 - 109
Carbon dioxide (mmol/L)1723 - 34
Anion gap (mmol/L)264 - 14
Glucose (mg/dL)51970 - 200
Blood urea nitrogen (mg/dL)278 - 20
Creatinine (mg/dL)1.390.7 - 1.5
Albumin (dm/dL)3.93.5 - 5.0
Total bilirubin (mg/dL)0.70.0 - 1.5
Alanine aminotransferase (IU/L)620 - 45
Aspartate aminotransferase (IU/L)440 - 45
Total creatine kinase (IU/L)2,6450 - 195
Vancomycin trough goal (µg/mL)19.415 - 20