Abstract
Schwannomas originating from the hypoglossal nerve are extremely rare neoplasms. Hypoglossal schwannomas usually occur between the third and fifth decades of life, with no sex predilection, commonly presenting as a painless, slow-growing, and lateral neck mass. The best treatment is complete surgical excision with preservation of the neural pathway, if possible. In fact, since these tumors are almost always benign, a conservative surgical approach is emphasized by most authors. We report a case of a large schwannoma of hypoglossal nerve origin in the upper neck in a 31-year-old male. Magnetic resonance imaging of the area demonstrated a 43 × 39 × 36 mm well-circumscribed mass with high and nonhomogeneous signal intensity on the right side of the upper neck. The lesion was successfully treated by extirpation, with no recurrence. The extracranial hypoglossal nerve sheath was as the origin of this tumor because the patient experienced remarkable disturbance of tongue motility after surgery.
Highlights
Schwannoma, a tumor of the peripheral nerve consisting of an abnormal proliferation of schwann cells, may beHow to cite this paper: Morita, Y., Kawakita, C., Taya, M., Yuzaki, K., Kotani, T., Iwagami, T., Kobayashi, K. and Morita, N. (2014) Schwannoma of Hypoglossal Nerve Origin in the Upper Neck: Case Report and Review of the Literature
We present here a case of a large schwannoma of hypoglossal nerve origin in the upper neck
Hypoglossal schwannomas are very rare because the hypoglossal nerve consists of only a motor component [8]
Summary
Schwannoma, a tumor of the peripheral nerve consisting of an abnormal proliferation of schwann cells, may be. (2014) Schwannoma of Hypoglossal Nerve Origin in the Upper Neck: Case Report and Review of the Literature. In more than 90% of cases, they present as vestibular schwannomas [1]. Schwannomas that arise from the hypoglossal nerve, a pure motor nerve, are very rare, accounting for only 5% of all nonacoustic intracranial schwannomas [2]. Due to their scarcity, early diagnosis of these lesions is difficult [3]. We present here a case of a large schwannoma of hypoglossal nerve origin in the upper neck
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