%0 Journal Article
%T S-100B as an extra selection tool for FDG PET/CT scanning in follow-up of AJCC stage III melanoma patients.
%A Deckers EA
%A Wevers KP
%A Muller Kobold AC
%A Damude S
%A Vrielink OM
%A van Ginkel RJ
%A Been LB
%A van Leeuwen BL
%A Hoekstra HJ
%A Kruijff S
%J J Surg Oncol
%V 120
%N 6
%D Nov 2019
%M 31468535
%F 2.885
%R 10.1002/jso.25682
%X OBJECTIVE: This current study assessed the value of S-100B measurement to guide fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) scanning for detecting recurrent disease in stage III melanoma patients.
METHODS: This study included 100 stage III melanoma patients in follow-up after curative lymph node dissection. Follow-up visits included physical examination and S-100B monitoring. FDG PET/CT scanning was indicated by clinical symptoms and/or elevated S-100B.
RESULTS: Of 100 patients, 13 (13%) had elevated S-100B without clinical symptoms, of whom 7 (54%) showed disease evidence upon FDG PET/CT scanning. Twenty-six patients (26%) had clinical symptoms with normal S-100B and FDG PET/CT revealed metastasis in 20 (77%). Three patients had clinical symptoms and elevated S-100B, and FDG PET/CT revealed metastasis in all three (100%). Overall, FDG PET/CT scanning revealed metastasis in 30 of the 42 patients (71.4%). For seven recurrences, elevated S-100B prompted early detection of asymptomatic disease; 10% of all asymptomatic patients in follow-up, 23% of all patients with recurrent disease.
CONCLUSIONS: S-100B cannot exclude recurrent disease during follow-up of stage III melanoma. However, adding S-100B measurement to standard clinical assessment can guide FDG PET/CT scanning for detecting recurrent melanoma.