Primary 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.
Written by:
Dong A, Zhai Z, Wang Y, Zuo C. Are you the author?
Departments of Nuclear Medicine, and Pathology, Changhai Hospital, Second Military Medical University, Shanghai, China.
Reference: Clin Nucl Med. 2014 Jan 17. Epub ahead of print.
PubMed Abstract
PMID: 24445275
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