PET-CT에서 우연히 발견된 비기능성 뇌하수체 거대선종 1예
A non-functioning pituitary macroadenoma detected incidentally with PET-CT
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초록
FDG-PET은 많은 종류의 암에서 질병의 범위를 판정하거나, 치료효과 판정 및 재발병소 진단에 유용한 영상기법이다. FDG-PET을 시행하여 뇌하수체 부위에 우연히 섭취가 증가된 소견이 있을 경우 추가적인 영상 검사와 내분비 기능 검사를 시행하여 기능성 또는 비기능성 종양 여부를 결정하고 적절한 치료를 시행해야 한다. 저자들은 우연히 FDG-PET에서 발견되어 확진 검사 후 비기능성 뇌하수체 선종으로 진단한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.
Abstract
Whole-body positron emission tomography (PET) with fluorine-18 fluorodeoxyglucose (18F-FDG) is a tomographic imaging technique that uses a radiolabeled analog of glucose, 18F-FDG, to image relative glucose uptake rates in various tissues. Since the glucose uptake is increased in many malignancies, 18F-FDG PET is a sensitive method for detecting, staging, and monitoring the effects of therapy on many malignancies. However, it is uncommon to discover an asymptomatic non-functioning pituitary tumor unexpectedly as a hypermetabolic lesion in PET studies. Here, we report a pituitary tumor that was detected incidentally by FDG-PET and ultimately turned out to be a non-functioning pituitary macroadenoma.
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