title: Is Sinusitis Innocent?--Unilateral Subdural Empyema in an Immunocompetent Child.
abstract: Subdural empyema related to Streptococcus constellatus is extremely rare in an immunocompetent child, and also there is no reported case along with Staphylococcus lugdunensis infection. Although Streptococcus constellatus has been determined as a co-pathogen with anerobic bacteria in many infections, it has not been reported in combination with Staphylococcus lugdunensis. The authors describe a case of previously healthy 16-y-old child with unilateral subdural empyema due to these bacteria. Sinusitis was the only predisposing factor in the index case. The authors propose that some cases of culture-negative intracranial infections may be due to these infectious agents. Therefore, these agents should be considered as causes of intracranial infection in persistent complaints such as fever and headache after sinusitis in children. It is important to treat them with effective antibiotics and early surgical intervention for favorable outcome, because fatal cases were reported due to Streptococcus constellatus infections.
authors.affiliation: Department of Pediatric Neurology, School of Medicine, Karadeniz Technical University, 61000, Trabzon, Turkey. sevimsahin1@yahoo.com.
authors.forename: Sevim
authors.initials: S
authors.lastname: Şahin
authors.affiliation: Department of Neurosurgery, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
authors.forename: Uğur
authors.initials: U
authors.lastname: Yazar
authors.affiliation: Department of Pediatric Neurology, School of Medicine, Karadeniz Technical University, 61000, Trabzon, Turkey.
authors.forename: Ali
authors.initials: A
authors.lastname: Cansu
authors.affiliation: Department of Radiology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
authors.forename: Sibel
authors.initials: S
authors.lastname: Kul
authors.affiliation: Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
authors.forename: Selçuk
authors.initials: S
authors.lastname: Kaya
authors.affiliation: Department of Pediatrics, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
authors.forename: Elif Bahat
authors.initials: EB
authors.lastname: Özdoğan
mesh_terms: D000293:Adolescent; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D013354:Empyema, Subdural / Q000209:etiology*; D006801:Humans; D007121:Immunocompetence; D008279:Magnetic Resonance Imaging; D008297:Male; D012852:Sinusitis / Q000150:complications* / Q000188:drug therapy; D013290:Streptococcal Infections / Q000150:complications* / Q000188:drug therapy; D034365:Streptococcus constellatus / Q000302:isolation & purification*
chemical_list: D000900:Anti-Bacterial Agents
keywords: Child; Staphylococcus lugdunensis; Streptococcus constellatus; Subdural empyema