title: Sinus fungus ball in the Japanese population: clinical and imaging characteristics of 104 cases.
abstract: Sinus fungus ball is defined as noninvasive chronic fungal rhinosinusitis occurring in immunocompetent patients with regional characteristics. The clinical and imaging characteristics of paranasal sinus fungus ball were retrospectively investigated in 104 Japanese patients. All patients underwent endoscopic sinus surgery. Preoperative computed tomography (CT), magnetic resonance (MR) imaging, age, sex, chief complaint, causative fungus, and clinical outcome were analyzed. Patients were aged from 25 to 79 years (mean 58.8 years). Female predominance was noted (58.7%). Most common symptoms were nasal discharge and facial pain. CT showed high density area in 82.0% of the cases (82/100), whereas T2-weighted MR imaging showed low intensity area in 100% of the cases (32/32). Histological examination showed that most causative agents were Aspergillus species (94.2% (98/104)). Culture test was positive for 16.7% (11/66). Recurrence was found in 3.2% (3/94). Older age and female predominance were consistent with previous reports. MR imaging is recommended to confirm the diagnosis.
authors: Department of Otorhinolaryngology, Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo 105-8461, Japan ; Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi 980-8574, Japan.
authors: Kazuhiro
authors: K
authors: Nomura
authors: Daiya
authors: D
authors: Asaka
authors: Tsuguhisa
authors: T
authors: Nakayama
authors: Tetsushi
authors: T
authors: Okushi
authors: Yoshinori
authors: Y
authors: Matsuwaki
authors: Tsuyoshi
authors: T
authors: Yoshimura
authors: Mamoru
authors: M
authors: Yoshikawa
authors: Nobuyoshi
authors: N
authors: Otori
authors: Toshimitsu
authors: T
authors: Kobayashi
authors: Hiroshi
authors: H
authors: Moriyama