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Tác giả: Trung Dũng Đào, Công Định Lê

Ngôn ngữ: vie

Ký hiệu phân loại: 610 Medicine and health

Thông tin xuất bản: Y học việt nam, 2013

Mô tả vật lý: 58-62

Bộ sưu tập: Metadata

ID: 483144

 Background: Primary benign tumors of middle ear are rare. Objectives: To study clinical, imaging presentations and results of surgery. Patients and methods: six patients, retrospective study. Results: Mean age was 47 years. Four and two out of six patients were glomus tympanicum and facial nerve schwan noma, respectively. Hearing loss, tinnitus were the most common symtoms in 66,7 percent of the cases. 100 percent otoscopic findings were reddish retrotympanic tumors, in three cases were pulsatile tumors. CT imaging revealed localized tumors in the middle ear without bony erosion in all six patients. MRI results showed rapid and strong enhancement in glomus tympanicum (four cases)
  slower and fainter in facial nerve schwannoma (two cases). Postoperatively, disappearance of tinnitus and otalgia was noted in all patients. Hearing improved with mean PTA was 31 dB, ABG was 17 dB. No tumor recurrence found on otoscpoy and control MRI. Conclusions:. Glomus tympanicum and facial nerve schwannoma were the most common tumors, accounting for 66,7 percent and 33,3 percent, respectively. The combination of CT and MRI was necessary modality. Surgery was effective in tumor removal and hearing restoration.
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