Exclusion of lung metastases in placental site trophoblastic tumor using [18F]fluorodeoxyglucose positron emission tomography: a case report.
BACKGROUND
We present the first case using [18F]fluorodeoxyglucose positron emission tomography (PET) for the evaluation of multiple lung nodules in a woman with placental site trophoblastic tumor (PSTT) and history of pulmonary tuberculosis.


METHODS
PSTT was diagnosed by endometrial biopsy in a 38-year-old female, 11 months after an abortion. She had received medical treatment for pulmonary tuberculosis 8 years ago. Nodular lung lesions in upper and lower lung fields were noted on the chest X-ray and computed tomography, which was not shown on PET. She then received hysterectomy and complete remission of serum beta-hCG titer with stationary lung lesions in follow-up images were noticed thereafter.


CONCLUSIONS
PET, as adjuvant study to conventional images, may help in the differentiation of chest lesions in PSTT.
Shaw
Sheng-Wen
SW
Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital Linkou Medical Center, 5 Fu-Shin Street, Kweishan, Taoyuan 333, Taiwan.
Wang
Chia-Woei
CW
Ma
Shih-Ya
SY
Ng
Koon-Kwan
KK
Chang
Ting-Chang
TC
D000328:Adult; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D049268:Positron-Emission Tomography; D011247:Pregnancy; D019275:Radiopharmaceuticals; D018245:Trophoblastic Tumor, Placental Site / Q000000981:diagnostic imaging* / Q000473:pathology*
D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18