title: [Clinical analysis of parotid cancer].
abstract: A clinical study was performed on 42 patients with parotid cancers initially treated in our hospital from 1972 to 1997. The five-year cumulative survival rate was 69% in the whole group and 72% in the radical surgical treatment group (n = 40). The five-year survival rates according to stage were as follows: stage I, 95% (21); stage II, 75% (4); stage III, 0% (1); and stage IV, 37% (16). The factors influencing prognosis were cases of T3 and T4 (p < 0.05), stage III and IV (p < 0.01), and cervical lymph node metastasis (p < 0.01). Regarding treatment modalities, a partial parotidectomy appeared to be a curable surgical procedure for T1 cases. However, a lobectomy is recommended for T2 cases. Furthermore our study proposed that prophylactic supraomohyoid neck dissection should be necessary for mucoepidermoid carcinoma (high-grade malignancy) and undifferentiated carcinoma of T4N0 cases.
authors.affiliation: Division of Head and Neck, National Kyushu Cancer Center, Fukuoka.
authors.forename: R
authors.initials: R
authors.lastname: Yasumatsu
authors.forename: T
authors.initials: T
authors.lastname: Ichibangase
authors.forename: K
authors.initials: K
authors.lastname: Tomita
authors.forename: T
authors.initials: T
authors.lastname: Hara
authors.forename: T
authors.initials: T
authors.lastname: Sueta
authors.forename: N
authors.initials: N
authors.lastname: Hirakawa
authors.forename: Y
authors.initials: Y
authors.lastname: Higaki
authors.forename: K
authors.initials: K
authors.lastname: Tomita
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection / Q000401:mortality; D009367:Neoplasm Staging; D010306:Parotid Gland / Q000601:surgery; D010307:Parotid Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D011379:Prognosis; D015996:Survival Rate