title: Isolated abscess of extraocular muscle in two young boys: clinical and imaging features.
abstract: OBJECTIVE
  To report two cases of a cystic isolated extraocular muscle abscess in a young boy.
  
  
  METHODS
  Case report.
  
  
  RESULTS
  Two cases of young boys with a cystic isolated extraocular muscle abscess are described. Each presented as an inflammatory lesion in the orbit that had been stable for approximately three weeks. Neurodiagnostic imaging of the two cases revealed a cystic lesion in close proximity to an extraocular muscle. An ultrasound-guided aspiration of each lesion revealed material that, when cultured, grew Staphylococcus aureus. Both patients recovered with appropriate antibiotic therapy. No other systemic illness could be identified in either case.
  
  
  CONCLUSIONS
  These cases illustrate that an isolated abscess involving an extraocular muscle may present like an inflammatory cyst even without any evidence of systemic illness. When evaluating and managing such lesions, the authors recommend the use of ultrasound-guided aspiration to avoid complications arising from delay in diagnosis and inappropriate treatment.
authors.affiliation: Department of Neuro-ophthalmology and Radiodiagnosis, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rai Bariely Road, Lucknow (U.P)-226014, India.
authors.forename: Atul
authors.initials: A
authors.lastname: Varma
authors.forename: Kumudini
authors.initials: K
authors.lastname: Sharma
authors.forename: Bharti
authors.initials: B
authors.lastname: Rathi
authors.forename: Rakesh K
authors.initials: RK
authors.lastname: Gupta
authors.forename: Vikas
authors.initials: V
authors.lastname: Malik
mesh_terms: D000038:Abscess / Q000000981:diagnostic imaging* / Q000382:microbiology / Q000628:therapy; D000293:Adolescent; D002648:Child; D003951:Diagnostic Errors; D004322:Drainage; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles; D013203:Staphylococcal Infections / Q000000981:diagnostic imaging* / Q000628:therapy; D013396:Suction / Q000379:methods*; D016896:Treatment Outcome; D014463:Ultrasonography