A review of parotid tumours in negeri sembilan, Malaysia

Abstract

Background/Objective: Parotid tumours represent one of many groups of tumours in the field of Otorhinolaryngology. However, a local demographical evaluation of parotid tumours and its annual incidences has never been undertaken. This study intends to review local demography in relation to incidence of parotid tumour seen in Otorhinolaryngology (ORL) clinic, Hospital Tuanku Ja'afar Seremban, Negeri Sembilan from the year 2007 till 2012. Methods: A retrospective demographical study on parotid cases seen in ORL clinic, Hospital Tuanku Ja'afar Seremban between 2007 till 2012 involving 56 cases. Data that was collected include patient details, facial nerve involvement on presentation, type of surgery performed, site of tumour, facial nerve injury post operation and final histopathological diagnosis. Results: An average of 10 cases per year was noted from 2007 to 2012. Male to female ratio was found to be 1.4:1. Age range of sample population were 9 to 79 years old with a mean age of 47 at time of diagnosis. Superficial lobe was found to be the most common tumour site (63%). Majority of cases consists of benign tumours in 51 out of 56 cases with Warthin's tumour and Pleomorphic Adenoma being the most common histopathological finding. Post operative facial nerve injury were noted in 17 cases in which 13 cases were temporary while 4 others were permanent.