Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imaging

Mesenteric panniculitis is a relatively rare fibro-inflammatory condition of the mesentery. In acute phase, it demonstrates avid uptake on Fluorine-18 FDG PET/CT (PET/CT). Thorough assessment is needed to differentiate from viable or recurrent disease in patients with malignant lymphoma because it m...

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Main Authors: Mitsutomi Ishiyama, MD, Manuela Matesan, MD, PhD
Format: Article
Language:English
Published: Elsevier 2020-07-01
Series:Radiology Case Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1930043320301680
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author Mitsutomi Ishiyama, MD
Manuela Matesan, MD, PhD
author_facet Mitsutomi Ishiyama, MD
Manuela Matesan, MD, PhD
author_sort Mitsutomi Ishiyama, MD
collection DOAJ
description Mesenteric panniculitis is a relatively rare fibro-inflammatory condition of the mesentery. In acute phase, it demonstrates avid uptake on Fluorine-18 FDG PET/CT (PET/CT). Thorough assessment is needed to differentiate from viable or recurrent disease in patients with malignant lymphoma because it mimics active lymphomatous disease on PET/CT. In this article, 3 illustrative cases of malignant lymphoma are presented. PET/CT demonstrated new FDG-avid mesenteric lesions at the end-of-treatment evaluation while the original disease showed significant response. Early recurrence was initially suspected, but together with clinical course and findings, active surveillance was opted. Sequential follow-up PET/CTs showed various patterns of metabolic activity over time; it can persist for months or more, or metabolic activity can fluctuate over time. Eventually benignity was confirmed in these cases. These cases underscore the importance of interpretation with clinical context and awareness of chronological metabolic changes of mesenteric panniculitis to determine proper management.
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spelling doaj.art-8482a98dd7d247859affddf8afd706bc2022-12-22T02:04:52ZengElsevierRadiology Case Reports1930-04332020-07-0115710061010Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imagingMitsutomi Ishiyama, MD0Manuela Matesan, MD, PhD1Department of Radiology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31, Ariake, Koto, Tokyo 135-8550, Japan; Corresponding author.Department of Radiology, University of Washington, Seattle, WA 98195, USAMesenteric panniculitis is a relatively rare fibro-inflammatory condition of the mesentery. In acute phase, it demonstrates avid uptake on Fluorine-18 FDG PET/CT (PET/CT). Thorough assessment is needed to differentiate from viable or recurrent disease in patients with malignant lymphoma because it mimics active lymphomatous disease on PET/CT. In this article, 3 illustrative cases of malignant lymphoma are presented. PET/CT demonstrated new FDG-avid mesenteric lesions at the end-of-treatment evaluation while the original disease showed significant response. Early recurrence was initially suspected, but together with clinical course and findings, active surveillance was opted. Sequential follow-up PET/CTs showed various patterns of metabolic activity over time; it can persist for months or more, or metabolic activity can fluctuate over time. Eventually benignity was confirmed in these cases. These cases underscore the importance of interpretation with clinical context and awareness of chronological metabolic changes of mesenteric panniculitis to determine proper management.http://www.sciencedirect.com/science/article/pii/S1930043320301680Mesenteric panniculitisFDG PET/CTMalignant lymphomaEarly recurrence
spellingShingle Mitsutomi Ishiyama, MD
Manuela Matesan, MD, PhD
Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imaging
Radiology Case Reports
Mesenteric panniculitis
FDG PET/CT
Malignant lymphoma
Early recurrence
title Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imaging
title_full Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imaging
title_fullStr Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imaging
title_full_unstemmed Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imaging
title_short Mesenteric panniculitis mimicking early recurrence at end-of-treatment evaluation in malignant lymphoma: Differentiation by active surveillance with F-18 FDG PET/CT imaging
title_sort mesenteric panniculitis mimicking early recurrence at end of treatment evaluation in malignant lymphoma differentiation by active surveillance with f 18 fdg pet ct imaging
topic Mesenteric panniculitis
FDG PET/CT
Malignant lymphoma
Early recurrence
url http://www.sciencedirect.com/science/article/pii/S1930043320301680
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