Colorectal Adenocarcinoma Mimicking Neuroendocrine Neoplasia on 18 F-FDOPA PET/CT.
case_report · Level V
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- Record sourced from PubMed, PMID 37976520.
- Also identified by DOI 10.1097/RLU.0000000000004945.
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Abstract
We present a case of a 48-year-old woman who had previously undergone surgical resection for bladder paraganglioma. An 18 F-FDOPA PET/CT scan performed for suspected colorectal paraganglioma showed intense colorectal uptake associated with adenopathy. Histological examination did not support the presence of a neuroendocrine tumor but instead confirmed the presence of moderately differentiated colorectal adenocarcinoma. Colorectal adenocarcinoma belongs to the list of nonneuroendocrine false-positive tumors that can be detected using 18 F-FDOPA. Therefore, a morphological analysis is important. Thus, 18 F-FDOPA may be a marker for the aggressiveness of colorectal adenocarcinoma.
Medical subject headings
- Neuroendocrine Tumors
- Paraganglioma
- Colorectal Neoplasms
- Adenocarcinoma
- Adrenal Gland Neoplasms