Comparison of two prognostic scores for patients with parotid carcinoma.
BACKGROUND
Salivary glands present a wide diversity in histopathologic types and biologic behaviors, thus complicating the search for prognostic factors.


METHODS
We compared 2 prognostic scores that were previously published for patients with parotid carcinoma in a retrospective series of 175 patients treated in a single institution.


RESULTS
Cox multivariate analysis indicated clinical skin invasion, facial nerve function, and perineural growth as the most significant recurrent disease-related prognostic factors. According to the Vander Poorten score, 148 patients were divided into 4 groups, with the 5-year disease-free survival of 76%, 81%, 69%, and 35%, respectively. In the Carrillo's score, the patients were divided into 3 groups: low-risk, intermediate-risk, and high-risk, with the 5-year disease-free survival of 84%, 73%, and 34%, respectively.


CONCLUSIONS
Carrillo's score showed more distinct survival curves, and determination of groups with a more favorable prognosis was difficult for both scores. Therefore, both scores were not totally reproducible for our group of patients.
Takahama
Ademar
A
Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Brazil. ademartjr@yahoo.com.br
Sanabria
Alvaro
A
Benevides
Gustavo Melo
GM
de Almeida
Oslei Paes
OP
Kowalski
Luiz Paulo
LP
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002277:Carcinoma / Q000145:classification / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000145:classification / Q000473:pathology*; D011379:Prognosis; D016019:Survival Analysis; D055815:Young Adult