Schwanomma of the parotid gland and its presentation
DOI:
https://doi.org/10.18203/2349-2902.isj20164303Keywords:
Fine-needle aspiration cytology, Parotid, SchwannomaAbstract
Our objective is to present a very rare clinical case of intraparotid facial nerve schwannoma that clinically presented as an asymptomatic parotid tumor, cystic neoplasm of the left parotid gland and was diagnosed after histopathology as schwanomma of the facial nerve. Another purpose is to discuss diagnostic possibilities, appropriate planning for the management and predictive outcomes of surgical management. A clinical case of a patient with an asymptomatic parotid mass diagnosed as a facial nerve schwannomaintraoperatively is presented. The patient’s presentation and the diagnostic procedures, surgery and the follow up procedures are discussed. Intraparotid facial nerve schwannoma is an extremely rare entity and rarely diagnosed preoperatively. Management of intraparotid facial nerve schwannomas (IFNS) is very challenging because the diagnosis is often made intraoperatively and in most cases resection can lead to severe facial nerve (FN) paralysis with significant aesthetic consequences. Imaging studies and fine-needle aspiration cytology are not always helpful in preoperative diagnosis.Metrics
References
Balle VH, Greisen O. Neurilemmoma of the facial nerve presenting as parotid tumors. Ann Otol Rhinol Laryngol. 1984;93(1):70-2.
Sneige N, Batsakis JG. Primary tumors of the facial (extracranial) nerve. Ann Otol Rhinol Laryngol. 1991;100(7):604-6.
Marchioni D, Ciufelli AM, Presutti L. Intraparotid facial nerve schwannoma: literature review and classification proposal. J Laryngol Otol. 2007;121(8):707-12.
Gore DO, Rankow R, Hanford JM. Parapharyngeal neurilemmoma surgery. Gynecol Obst. 1956;103(2):193-201.
Parisier SC, Edelstein DR, Levenson MJ. Facial nerve neuromas in otolaryngology. Paparella MM, Shumrick DA, Gluckman JL, Meyerhoff WL. W.B. Saunders Company, Philadelphia, USA;1991:1465-1466.
Kyriakos M. Neurogenous tumors in Comprehensive management of head and neck tumors. Thawley SE, Panje WR. W. B. Saunders, Philadelphia, USA. 1987:1253-61.
Johnson JR, Myers EN, Curtin HD. Tumors of the parapharyngeal space in Cancer of the Head and Neck, Myers EN, Suen JY. Churchill Livingstone; New York, USA. 1989:669-90.
Verma RK, Prasad RK, Bharti S, Panda NK. Intraparotid facial nerve schwannoma involving the deep lobe: a case report. Egyptian J Ear, Nose, Throat Allied Sci. 2011;12(3):163-6.
Layfield LJ, Tan P, Glasgow BJ. Fine-needle aspiration of salivary gland lesions. Comparison with frozen sections and histologic findings. Arch Pathol Lab Med. 1987;111:346-53.
Conley J, Janecka I. Neurilemmoma of the facial nerve. Plast Reconstr Surg. 1973;52:55-60.
Forton GJE, Moeneclaey JJM, Offeciers JE. Facial nerve neuroma. Report of two cases including histological and radiological imaging studies. European Archives Otorhino Laryngol. 1994;251(1):17-22.
Caughey RJ, May M, Schaitkin BM. Intraparotid facial nerve schwannoma: diagnosis and management. Otolaryngol Head Neck Surg. 2004;130(5):586-92.