PDF Download
PubReader
Export Citation
Share Facebook
Share Twitter
Cited by 0 Article
Metrics (View:2,342)- Malignant parotid tumor
QR Code of this Article:
이하선 악성종양의 임상학적 고찰
Published Online: May 31, 2020
ABSTRACT
Malignant parotid tumors are uncommon in the field of head and neck cancer. It has various kinds of histopathology. According to histopathologic type, it's prognosis is different. Authors wanted to know the characteristics of malignant parotid tumor and its prognosis. We reviewed retrospectively 16 patients who were operated as malignant parotid tumor from January 1987 to January 1997 at department of otolaryngology, Pusan National University Hospital. Postoperative radiotherapy was done in 69%(11 cases) and operation aloneündude RND) was done in 31%(5 cases).
The results were as follows.
In histopathologic type, mucoepidermoid carcinoma was 31%(5 cases), adenoid cystic carcinoma 25%(4 cases), acinic cell carcinoma 19%(3 cases), malignant mixed tumor 13%(2 cases), adenocarcinoma 6%(1 case), myoepithelial cell carcinoma 6%(1 case) in order.
The sex ratio of male to female was 1 :1.6 and the peak incidence of age was fourth and fifth decade.
Main symptom was palpable mass in all cases. The other symptoms were pain 38%(6 cases), facial nerve paralysis 25%(4 cases) and pathologic bone fracture due to tumor invasion 13%(2 cases) in order.
The size of tumor was variable and almost cases were less than 6 cm.
Postoperative complications were total facial nerve paralysis 31%(5 cases), partial facial nerve paralysis 25%(4 cases), Frey's syndrome 19%(3 cases) and facial edema and flushing 6%(1 case) in order.
According to Kaplan-Meier method, the 5 year survival rate was 81% and it's results were relative favorable