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  • Title: Giant neurilemmoma of the vagus nerve: a case report and review of literature.
    Author: Dhull AK, Kaushal V, Atri R, Dhankhar R, Kataria SP.
    Journal: J Indian Med Assoc; 2012 Dec; 110(12):926-8. PubMed ID: 23936960.
    Abstract:
    Cervical vagal neurilemmomas are rare, usually asymptomatic, slow-growing tumours and defined as a benign, encapsulated neoplasm that arises in the nerve fibre. Magnetic resonant imaging (MRI) plays a central role in diagnosing vagal nerve neoplasm and in fact, provides important pre-operative information useful in planning optimal surgical treatment. A rare case of giant neurilemmoma is presented with a large swelling in the right side of the neck associated with breathlessness and paroxysmal cough. X-ray chest revealed large homogenous opacity in apical area of the right lung extending into the lower neck. MRI revealed a large 6 x 8 x 13 cm soft tissue, well defined mass with lobulated contours on the right side of the neck. The mass was pushing sternomastoid muscle anteriorly and carotid artery was pushed anteromedially. The mass was abutting the brachial plexus and compressing internal jugular vein. The mass was extending into the mediastinum up to the level of carina. The mass was also pushing the vessels in superior mediastinum towards left and was compressing the veins. Tumour was extending posterior to trachea and pushing trachea anteriorly and towards left and also compressing it. There was also erosion of adjacent anterior aspect of the right upper ribs. Subclavian artery was also encased by the mass. Multiple enlarged lymph nodes were seen in right cervical area. A provisional diagnosis of malignant schwannoma of right vagus nerve was made. Cytology from the fine needle aspirate of the right lower Cervical region of the swelling revealed features of neurilemmoma. Complete surgical resection is the treatment of choice with excellent prognosis, as the tumour was benign, and recurrence is nearly unknown, so it is possible and indeed recommended to preserve nerve integrity with careful dissection.
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