INTERESTING IMAGE FDG PET-CT Findings in Epiploic Appendagitis Nilendu C. Purandare, DMRD, DNB, Sumeet Dua, MBBS, Sneha Shah, DRM, DNB, Khushboo Gupta, DRM, Anshu Rajnish Sharma, DRM, DNB, and Venkatesh Rangarajan, DRM, DNB Abstract: Positron emission tomography (PET) using flourodeoxyglucose (FDG) is routinely used for initial staging and restaging of colorectal cancers. However FDG PET studies can suffer from false-positive tracer uptake due to a variety of physiological and inflammatory conditions arising in the abdomen and pelvis. Epiploic appendagitis is one such condition that can give rise to increased glucose concentration on a FDG PET study. We describe the etiology, clinical presentation, computerized tomography scan and FDG PET-computed tomography findings of this unusual inflammatory condition in an operated case of colorectal cancer. Key Words: FDG PET-CT, epiploic appendagitis (Clin Nucl Med 2009;34: 906 –908) REFERENCES 1. Carmichael DH, Organ CH Jr. Epiploic disorders: conditions of the epiploic appendages. Arch Surg. 1985;120:1167–1172. 2. Rioux M, Langis P. Primary epiploic appendagitis: clinical, US, and CT findings in14 cases. Radiology. 1994;191:523–526. 3. Molla E, Ripolles T, Martinez MJ, et al. Primary epiploic appendagitis: US and CT findings. Eur Radiol. 1998;8:435– 438. 4. Sirvanci M, Balci NC, Karaman K, et al. Primary epiploic appendagitis: MRI findings. Magn Reson Imaging. 2002;20:137–139. 5. van Breda Vriesman AC, Lohle PN, Coerkamp EG, et al. Infarction of omentum and epiploic appendage: diagnosis, epidemiology and natural history. Eur Radiol. 1999;9:1886 –1992. 6. Burger I, Goerres GW, von Schulthess GK, et al. PET/CT: diagnostic improve- ment in recurrent colorectal carcinoma compared to PET, alone. Radiology. 2002;225(suppl P):242. 7. Engel H, Steinert H, Buck A, et al. Whole-body PET: physiological and artifactual fluorodeoxyglucose accumulations. J Nucl Med. 1996;37:441– 446. 8. Kresnik E, Gallowitsch HJ, Mikosch P, et al. (18)F-FDG positron emission tomography in the early diagnosis of enterocolitis: preliminary results. Eur J Nucl Med Mol Imaging. 2002;29:1389 –1392. Received for publication July 10, 2009; revision accepted August 9, 2009. From the Bio-Imaging Unit; Tata Memorial Hospital, Parel, Mumbai, India. Reprints: Venkatesh Rangarajan, DRM, DNB, Bio-Imaging Unit, Tata Memorial Hospital, Parel, Mumbai 400012. India. E-mail: drvrangarajan@gmail.com. Copyright © 2009 by Lippincott Williams & Wilkins ISSN: 0363-9762/09/3412-0906 Clinical Nuclear Medicine • Volume 34, Number 12, December 2009 906 | www.nuclearmed.com