Integrated 18F-fluorodeoxyglucose positron emission tomography and computerized tomography in endodermal sinus tumor.
Application of an in-line positron emission tomography and computerized tomography (PET-CT) in endodermal sinus tumor (EST) is described in this study. CASE 1: A young female with massive ascites postovarian mass resection had elevated alpha-fetoprotein (AFP) serum levels. Following a positive PET-CT study with increased (18)F-fluorodeoxyglucose (FDG) uptake, a CT-guided core biopsy of a peritoneal mass was performed. EST was diagnosed histologically. The patient was disease free after chemotherapy. Follow-up PET-CT was negative in keeping with no viable tumor tissue. CASE 2: A large pelvic mass diagnosed histologically as primarily EST was removed in a teenage patient with elevated AFP levels. PET-CT showed diffuse abdominal spread of FDG uptake, suggesting extensive peritoneal seeding. The patient was disease free after chemotherapy. Follow-up PET-CT was negative. EST is an FDG-avid tumor. PET-CT delineated the prechemotherapy tumor extent adequately ruled out the presence of residual tumor after a successful treatment.
Klieger
C
C
Department of Obstetrics and Gynecology, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Israel.
Dvir
R
R
Even-Sapir
E
E
Lessing
J B
JB
Burstein
Y
Y
Grisaru
D
D
D000293:Adolescent; D000328:Adult; D018240:Endodermal Sinus Tumor / Q000000981:diagnostic imaging* / Q000628:therapy; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D009367:Neoplasm Staging; D049268:Positron-Emission Tomography; D011379:Prognosis; D019275:Radiopharmaceuticals; D000509:alpha-Fetoproteins / Q000378:metabolism
D019275:Radiopharmaceuticals; D000509:alpha-Fetoproteins; D019788:Fluorodeoxyglucose F18