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1 "Eunji Han"
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Original Article
Clinical Etiology of Hypermetabolic Pelvic Lesions in Postoperative Positron Emission Tomography/Computed Tomography for Patients With Rectal and Sigmoid Cancer
Yun Hee Kang, Eunji Han, Geon Park
Ann Coloproctol. 2018;34(2):78-82.   Published online April 30, 2018
DOI: https://doi.org/10.3393/ac.2017.09.21
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AbstractAbstract PDF
Purpose
The purpose of this study was to present various clinical etiologies of hypermetabolic pelvic lesions on postoperative positron emission tomography/computed tomography (PET/CT) images for patients with rectal and sigmoid cancer.
Methods
Postoperative PET/CT images for patients with rectal and sigmoid cancer were retrospectively reviewed to identify hypermetabolic pelvic lesions. Positive findings were detected in 70 PET/CT images from 45 patients; 2 patients who were lost to follow-up were excluded. All PET findings were analyzed in comparison with contrast-enhanced CT.
Results
A total of 43 patients were classified into 2 groups: patients with a malignancy including local recurrence (n = 30) and patients with other benign lesions (n = 13). Malignant lesions such as a local recurrent tumor, peritoneal carcinomatosis, and incidental uterine malignancy, as well as various benign lesions such as an anastomotic sinus, fistula, abscess, reactive lymph node, and normal ovary, were observed.
Conclusion
PET/CT performed during postoperative surveillance of rectal and sigmoid colon cancer showed increased fluorodeoxyglucose uptake not only in local recurrence, but also in benign pelvic etiologies. Therefore, physicians need to be cautious about the broad clinical spectrum of hypermetabolic pelvic lesions when interpreting images.

Citations

Citations to this article as recorded by  
  • Variants and Pitfalls in PET/CT Imaging of Gastrointestinal Cancers
    Vetri Sudar Jayaprakasam, Viktoriya Paroder, Heiko Schöder
    Seminars in Nuclear Medicine.2021; 51(5): 485.     CrossRef
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