Background-Some adjuvant or neo-adjuvant therapy could be important fo
r patients operated on for tumours of the ampulla of Vater, especially
for those having a higher risk of recurrence. Aim-To evaluate prognos
tic factors after curative surgery based on a series of 45 cases of ma
lignant tumours of the Oddi sphincter. Patients-From 1970 to 1992, a c
urative resection was performed in 45 patients (age 62 . 8 (SD 10 . 1)
years) with adenocarcinoma of the ampulla. Surgical procedures includ
ed pancreatoduodenectomy (n=42) and resection of the ampulla (n=3). Ac
tuarial survival was 44 (SD 9)% at five years. Methods-Various prognos
tic variables were studied: clinical manifestations, macroscopic aspec
t, differentiation, noninvasive adenomatous component, mucin histochem
istry, immunohistochemistry (CEA, CA19.9, p53, Ki67), and accepted cla
ssifications (Blumgart and Kennedy, Martin, Yamaguchi and Enjoji, Talb
ot et al, pTNM). Results-Variables with prognostic power, in order of
importance were: Classification of Talbot ef al; CA19.9; pTNM; sialomu
cins; classification of Yamaguchi and Ejoji; Martin classification; su
lphomucins; non-invasive adenomatous component (positive>negative); ja
undice; tumour localisation. Conclusions-This series confirmed the pro
gnostic power of former classifications and showed the prognostic powe
r of other variables (mucin, non-invasive adenomatous component, CA19.
9).