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

0 Comments

SARS-CoV-2/COVID-19

22 September 2022 : Case report  USA

Rare Case of Persistently Depressed T Lymphocyte Subsets After SARS-CoV-2 Infection

Am J Case Rep In Press; DOI: 10.12659/AJCR.937760  

22 September 2022 : Case report  Poland

Central Retinal Vein Occlusion After Discontinuation of Rivaroxaban Therapy in a Young Patient with COVID-1...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937739  

19 September 2022 : Case report  Spain

Inhaled Nitric Oxide in Acute Severe Pulmonary Hypertension and Severe Acute Respiratory Distress Syndrome ...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937147  

14 September 2022 : Case report  Japan

Case Report: A 29-Year-Old Pregnant Woman at 24 Weeks of Gestation Presenting with Laryngotracheitis and CO...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937834  

In Press

26 Sep 2022 : Case report  Saudi Arabia

An Infant Presenting with Interstitial Lung Disease Diagnosed Later as Hunter Syndrome: A Case Report

Am J Case Rep In Press; DOI: 10.12659/AJCR.937527  

26 Sep 2022 : Case report  Thailand

Acute Intermittent Porphyria: Complete Phenotype in a Patient with p.Arg173Trp Variant in Thailand

Am J Case Rep In Press; DOI: 10.12659/AJCR.937695  

26 Sep 2022 : Case report  USA

Injury to the Posterior Horn of the Lateral Meniscus from a Misplaced Tibial Tunnel for Anterior Cruciate L...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937581  

26 Sep 2022 : Case report  USA

Recurrent Gastrointestinal Bleed Due to Small Bowel Vascular Malformation in a Patient with Turner Syndrome...

Am J Case Rep In Press; DOI: 10.12659/AJCR.937259  

Most Viewed Current Articles

13 Jul 2022 : Case report  USA

Whistling Scrotum: An Unusual Presentation of Pneumomediastinum in the Setting of an Open Scrotal Wound

DOI :10.12659/AJCR.936441

Am J Case Rep 2022; 23:e936441

23 Feb 2022 : Case report  USA

Penile Necrosis Associated with Local Intravenous Injection of Cocaine

DOI :10.12659/AJCR.935250

Am J Case Rep 2022; 23:e935250

06 Dec 2021 : Case report  Brazil

Lipedema Can Be Treated Non-Surgically: A Report of 5 Cases

DOI :10.12659/AJCR.934406

Am J Case Rep 2021; 22:e934406

17 Feb 2022 : Case report  Oman

Myocarditis, Pulmonary Hemorrhage, and Extensive Myositis with Rhabdomyolysis 12 Days After First Dose of P...

DOI :10.12659/AJCR.934399

Am J Case Rep 2022; 23:e934399

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