Assessment of ovarian teratoma and lymphadenopathy by 18F-FDG PET/CT.
Two women presented with abdominal complaints; after clinical investigation and ultrasonography, both were suspected of having (ovarian) teratoma. The CT scan showed enlarged para-aortic lymph nodes, which increased the suspicion of a malignant process. Total-body 18F-FDG PET/CT studies helped to differentiate benign from malignant ovarian teratoma, as well as abdominal lymphadenopathy, subsequently confirmed by histopathology. When there is suspicion of a malignant teratoma, 18F-FDG PET/CT may help in accurate diagnosis and staging; as for malignant disease (either malignant transformation of mature cystic teratoma or malignant immature teratoma), a more aggressive, multimodality approach may be indicated.
Department of Nuclear Medicine, Medical Centre Leeuwarden, Leeuwarden, The Netherlands. hans.balink@znb.nl
Hans
H
Balink
Mirjam J A
MJ
Apperloo
James
J
Collins
D000328:Adult; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008206:Lymphatic Diseases / Q000150:complications / Q000000981:diagnostic imaging*; D064847:Multimodal Imaging; D010051:Ovarian Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D049268:Positron-Emission Tomography; D013724:Teratoma / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
D019788:Fluorodeoxyglucose F18