初回術後 9 年目に再手術を行った鼓室型グロームス腫瘍例

Translated title of the contribution: A Case of Glomus Tympanicum Tumor That Needed Reoperation 9 Years After the First Surgery

Shiori Oda, Norio Yamamoto, Takayuki Okano, Koji Nishimura, Yosuke Tona, Koichi Omori

Research output: Contribution to journalArticlepeer-review

Abstract

Glomus tumors (paragangliomas) are benign neuroendocrine tumors derived from the paraganglia. Temporal bone paragangliomas are classified as glomus tympanicum or glomus jugulare according to their location. Total surgical removal is the treatment of first choice for glomus tympanicum. A 60-year-old man presented to us with the symptom of ear fullness. Contrast-enhanced CT showed a non-enhancing soft-tissue lesion in the middle ear. We performed exploratory tympanotomy to examine the histology, and intraoperative surgical pathology indicated that the soft tissue was an inflammatory granuloma. We did not perform total removal of the lesion, as the granulation tissue surrounded the stapes, and we wished to preserve the bone conduction hearing. Postoperative histopathological diagnosis revealed that the tumor was a paraganglioma. Since paraganglioma is a slow-growing benign tumor, we decided to observe the residual lesion. During nine years of observation, the lesion gradually increased in size and the patient’s hearing level worsened. Therefore, we performed reoperation for total removal of the lesion. At present, two years since the surgery, the patient’s hearing has been stable and no recurrence of the lesion has been observed. The standard treatment for glomus tympanicum is total removal. However, if close observation is possible, partial removal is acceptable as an alternative strategy to preserve the bone conduction hearing.

Translated title of the contributionA Case of Glomus Tympanicum Tumor That Needed Reoperation 9 Years After the First Surgery
Original languageJapanese
Pages (from-to)21-27
Number of pages7
JournalPractica Oto-Rhino-Laryngologica
Volume118
Issue number1
DOIs
Publication statusPublished - 2025

All Science Journal Classification (ASJC) codes

  • Otorhinolaryngology

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