Adenocarcinomas arising from primary retroperitoneal mature teratomas: CT and MR imaging.
An adenocarcinoma arising from mature teratoma is one form of teratoma with malignant transformation. It is extremely rare but highly malignant. The authors report two patients with adenocarcinomas arising from primary retroperitoneal teratomas. The CT and MRI findings of the tumors are presented with emphasis on imaging features implying the presence of malignant transformation and differing from those of pure benign mature teratoma. Correct diagnosis of the presence of malignant transformation from a benign mature teratoma can be made as early as possible by awareness of the imaging features.
Wang
Li-Jen
LJ
Department of Diagnostic Radiology, Second Division, Chang Gung Memorial Hospital, 199 Tung Hwa North Road, Taipei, Taiwan. ljw33db@adm.cgmh.org.tw
Chu
Sheng-Hsien
SH
Ng
Kwai-Fong
KF
Wong
Yon-Cheong
YC
D000230:Adenocarcinoma / Q000175:diagnosis*; D000328:Adult; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D016609:Neoplasms, Second Primary / Q000175:diagnosis*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*; D013724:Teratoma / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed