[Positron emission tomography with fluorine-deoxyglucose in sarcomas and non-sarcoma non-epithelial tumors].
BACKGROUND
The usefulness of positron emission tomography (PET) with fluorine-deoxyglucose (FDG) in sarcomas and non-sarcoma non-epithelial (NSNE) tumors is not clearly defined.


OBJECTIVE
To report a Chilean experience with NSNE tumors evaluated using PET with FDG.


METHODS
Retrospective review of the database of a PET laboratory. Demographic data, indications and metabolic findings were compared with conventional imaging in 88 adults and children with diverse bone and soft tissue sarcomas as well as 24 gastrointestinal stromal tumors (GIST), 6 pleural malignant mesotheliomas in adults, and 9 medulloblastomas in children.


RESULTS
FDG showed good concordance with conventional imaging in NSNE tumors. It was helpful for staging, restaging, follow-up after treatment and for the detection of new not previously suspected lesions.


CONCLUSIONS
PET with FDG could have a prognostic role and help in patient management, mainly in musculoskeletal and high grade or less differentiated sarcomas. In GIST, it was a good tool for immunotherapy control.
Sección Medicina Nuclear, Departamento de Medicina, Hospital Clínico Universidad de Chile, Chile. tmassardo@redclinicauchile.cl
Teresa
T
Massardo
María Josefina
MJ
Jofré
María Paulina
MP
Sierralta
José
J
Canessa
Gabriel
G
Castro
Isabel
I
Berrocal
Iván
I
Gallegos
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000000981:diagnostic imaging*; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D012189:Retrospective Studies; D012509:Sarcoma / Q000000981:diagnostic imaging*; D055815:Young Adult
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18