J Rhinol > Volume 23(1); 2016
Journal of Rhinology 2016;23(1):55-59.
Published online May 31, 2016.
DOI: https://doi.org/10.18787/jr.2016.23.1.55   
Bioballs Causing Asymptomatic or Recurrent Acute Rhinosinusitis: Two Cases
Hong Dae Kim, Dong Won Lee, Ju Yeon Pyo, Young Ha Oh, Seok Hyun Cho
1Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Hanyang University, Seoul, Korea. shcho@hanyang.ac.kr
2Department of Pathology, College of Medicine, Hanyang University, Seoul, Korea.
무증상 혹은 재발성 급성 부비동염의 원인으로 작용하는 생물구: 2예
김홍대, 이동원, 표주연, 오영하, 조석현
한양대학교 의과대학 이비인후-두경부외과학교실,1 병리학교실,2
A variety of intrinsic and extrinsic factors have been studied to explain the pathogenesis of rhinosinusitis. Recently biofilms are emerging as an important cause. Biofilms are highly organized structures composed of a protective extracellular matrix and bacterial colonies, and provide the means for bacterial survival and virulence. Biofilms are known to be associated with intractable cases of rhinosinusitis and antibiotic resistance. Patients diagnosed with biofilm-related rhinosinusitis tend to suffer more severe disease that those without biofilms. Biofilm severity can also influence the prognosis of rhinosinusitis. We present two cases of pseudomonas-induced macroscopic biofilms (bioballs) of the maxillary sinuses. These bioballs cause intractable chronic rhinosinusitis as well, but unlike traditional biofilms, they can be surgically removed by endoscopy, and thus have a better prognosis than traditional biofilms. This is the first report of visible biofilms (bioballs) found in the maxillary sinuses.
Key Words: Biofilm;Bacteria;Pseudomonas;Rhinosinusitis;Maxillary sinus

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