MRI, Enhanced CT, and FDG PET/CT in Primary Retroperitoneal Mucinous Cystadenocarcinoma

ABSTRACTPrimary retroperitoneal mucinous cystadenocarcinoma (PRMC) is an extremely rare neoplasm. We present a case of PRMC with MRI, enhanced CT, and FDG PET/CT findings. Abdominal MRI showed a cystic lesion in the retroperitoneum with a mural nodule. The mural nodule showed progressive enhancement...

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Bibliographic Details
Published in:Clinical nuclear medicine 2015-01, Vol.40 (1), p.50-53
Main Authors: Dong, Aisheng, Zhai, Zhijun, Wang, Yang, Zuo, Changjing
Format: Article
Language:English
Subjects:
Cystadenocarcinoma, Mucinous - diagnostic imaging
Cystadenocarcinoma, Mucinous - pathology
Female
Fluorodeoxyglucose F18
Humans
Magnetic Resonance Imaging
Middle Aged
Multimodal Imaging
Positron-Emission Tomography
Radiopharmaceuticals
Retroperitoneal Neoplasms - diagnostic imaging
Retroperitoneal Neoplasms - pathology
Tomography, X-Ray Computed
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Summary:ABSTRACTPrimary retroperitoneal mucinous cystadenocarcinoma (PRMC) is an extremely rare neoplasm. We present a case of PRMC with MRI, enhanced CT, and FDG PET/CT findings. Abdominal MRI showed a cystic lesion in the retroperitoneum with a mural nodule. The mural nodule showed progressive enhancement on enhanced CT and intense FDG uptake on early PET/CT with increased SUVmax on delayed PET/CT. Laparoscopy was performed. Retroperitoneal mucinous cystadenocarcinoma was confirmed histopathologically. Metastasis from gastrointestinal tract or ovary was excluded. This case indicates, although rare, PRMC should be considered when a hypermetabolic retroperitoneal cystic lesion with bilateral normal ovaries is found on FDG PET/CT.
ISSN:0363-9762
1536-0229
DOI:10.1097/RLU.0000000000000343