Logo American Journal of Case Reports

Call: 1.631.629.4328
Mon-Fri 10 am - 2 pm EST

Contact Us

Logo American Journal of Case Reports Logo American Journal of Case Reports Logo American Journal of Case Reports

12 March 2015 : Case report  Japan

An FDG-PET/CT-Positive Lesion Mimicking Local Recurrence of Colon Cancer 5 Years after Radical Colectomy

Unusual clinical course, Mistake in diagnosis, Diagnostic / therapeutic accidents

Takashi OriiABCDEF, Motohiro OkumuraB, Masaki YoshimuraB, Hiroe KitaharaB, Yukihiko KarasawaB

DOI: 10.12659/AJCR.891129

Am J Case Rep 2015; 16:149-152

Abstract

BACKGROUND: Radical resection of colorectal cancer yields satisfactory results. Even if the cancer recurs, long-term survival is expected through further surgical resection of the recurrent disease. For early detection of recurrent lesions, we routinely perform periodic blood tests and imaging studies, in which 18F-fluorodeoxyglucose-glucose positron emission tomography (FDG-PET) plays an important role, for lesion differentiation. We encountered a case of a benign lesion, which had been clinically diagnosed as recurrence of resected colon cancer by FDG-PET/computed tomography (CT).

CASE REPORT: A 69-year-old woman underwent radical resection of stage II sigmoid colon cancer. Five years after the operation, local recurrence was suspected on the basis of follow-up CT examination findings. Since the standardized uptake value (SUV) on FDG-PET/CT was 13.3, we diagnosed the lesion as a postoperative local recurrence and performed surgical resection of the lesion. The lesion was conclusively diagnosed as benign fatty tissue, including a fibrovascular component, by histopathological examination.

CONCLUSIONS: FDG-PET is a very useful technique for differentiating benign from malignant disease. In colorectal cancer, FDG-PET not only enables the differentiation of malignancy in the primary tumor, but also the confirmation of metastasis and postoperative recurrence. However, even if the SUV is high, as in the presented case, the lesion may eventually be diagnosed as benign. Therefore, further advances in the PET technique are expected along with the development of more useful modalities.

Keywords: Adenocarcinoma - surgery, Cicatrix - diagnosis, Colectomy, Diagnosis, Differential, False Positive Reactions, Fluorodeoxyglucose F18 - diagnostic use, Multimodal Imaging, Neoplasm Recurrence, Local - diagnosis, Positron-Emission Tomography, Radiopharmaceuticals - diagnostic use, Sigmoid Neoplasms - surgery, Time Factors, Tomography, X-Ray Computed

Add Comment 0 Comments

In Press

Case report  Japan

Hidden Inferior Vena Cava Injury: A Case of Missed Diagnosis after Preoperative CT and Laparotomy

Am J Case Rep In Press; DOI: 10.12659/AJCR.943876  

0:00

Case report  Saudi Arabia

Management of Acute Corneal Hydrops Using Compression Sutures and Intracameral Air Injection

Am J Case Rep In Press; DOI: 10.12659/AJCR.944517  

0:00

Case report  Malaysia

Giant Urinary Bladder in a Woman with Down Syndrome: A Case Report

Am J Case Rep In Press; DOI: 10.12659/AJCR.944260  

0:00

Case report  Brazil

Successful Case of Double Valve Replacement Surgery Using Autologous Blood Transfusion: A Patient's Autonom...

Am J Case Rep In Press; DOI: 10.12659/AJCR.943675  

0:00

Most Viewed Current Articles

07 Mar 2024 : Case report  USA 39,552

Neurocysticercosis Presenting as Migraine in the United States

DOI :10.12659/AJCR.943133

Am J Case Rep 2024; 25:e943133

0:00

10 Jan 2022 : Case report  Germany 31,343

A Report on the First 7 Sequential Patients Treated Within the C-Reactive Protein Apheresis in COVID (CACOV...

DOI :10.12659/AJCR.935263

Am J Case Rep 2022; 23:e935263

23 Feb 2022 : Case report  USA 18,295

Penile Necrosis Associated with Local Intravenous Injection of Cocaine

DOI :10.12659/AJCR.935250

Am J Case Rep 2022; 23:e935250

19 Jul 2022 : Case report  Saudi Arabia 17,997

Atlantoaxial Subluxation Secondary to SARS-CoV-2 Infection: A Rare Orthopedic Complication from COVID-19

DOI :10.12659/AJCR.936128

Am J Case Rep 2022; 23:e936128

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923