Abstract:
:To assess the prognostic value of apoptosis, proliferation and clinical factors in squamous cell carcinoma of the oropharynx after radical surgery and postoperative radiotherapy (RT). Between 1985 and 1995, a total of 82 patients with 84 tumors were entered onto the study. Forty-two primary tumors (50%) involved the tonsils, 23 (27%) the soft palate, and 19 (23%) the base of the tongue. Median age was 52 years (range, 36-73 years). The pT- and pN-categories (UICC 1997) were: T1 (24), T2 (36), T3 (18), T4 (6), N0 (31), N1 (12), N2 (38), NX (8). Histologically clear margins were achieved in all patients by initial surgery. Postoperative RT to the primary and regional lymphatics was given with 60 Gy in 6 weeks and single daily fractions of 2 Gy. The expression of the nuclear Ki-67 labeling index (LI) was investigated by immunostaining using the monoclonal antibody MIB 1 and apoptotic carcinoma cells were identified using the terminal deoxynucleotidyltransferase-(TdT)-mediated dUTP nick end labeling (TUNEL) technique. Median follow-up was 43 months (range, 14-132 months). Overall survival, disease-free survival, and locoregional tumor control rates were 59, 70 and 76% at 5 years. Median values for apoptotic index and Ki-67 labeling were 1.6% (range 0-4.7%), and 20% (range, 0-79%), respectively. Apoptotic index
journal_name
Oral Oncoljournal_title
Oral oncologyauthors
Grabenbauer GG,Suckorada O,Niedobitek G,Rödel F,Iro H,Sauer R,Rödel C,Schultze-Mosgau S,Distel Ldoi
10.1016/s1368-8375(03)00005-8subject
Has Abstractpub_date
2003-07-01 00:00:00pages
459-69issue
5eissn
1368-8375issn
1879-0593pii
S1368837503000058journal_volume
39pub_type
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