FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastases

Gastric cancer presents with similar clinical symptoms as gastric ulcer, and the morphologic features of gastroscopy overlap considerably. We report a 58-year-old man with the clinical presentation of recurrent gastric discomfort and black stools. A suspected malignant tumor of the gastric antrum-py...

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Main Authors: Dan Ruan, MD, Yanhong Wang, MM, Janyao Fang, MM, Xinyu Teng, MM, Beilei Li, MD, PhD
Format: Article
Language:English
Published: Elsevier 2022-05-01
Series:Radiology Case Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1930043322000991
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author Dan Ruan, MD
Yanhong Wang, MM
Janyao Fang, MM
Xinyu Teng, MM
Beilei Li, MD, PhD
author_facet Dan Ruan, MD
Yanhong Wang, MM
Janyao Fang, MM
Xinyu Teng, MM
Beilei Li, MD, PhD
author_sort Dan Ruan, MD
collection DOAJ
description Gastric cancer presents with similar clinical symptoms as gastric ulcer, and the morphologic features of gastroscopy overlap considerably. We report a 58-year-old man with the clinical presentation of recurrent gastric discomfort and black stools. A suspected malignant tumor of the gastric antrum-pylorus was observed on gastroscopy. Contrast-enhanced CT showed enhancement of the lesion. PET/CT revealed an FDG-avid lesion at the gastric antrum-pylorus, an intense FDG-uptake perigastric lymph node, and an enlarged nodule with high FDG uptake in the right abdominal wall. Subsequent surgical pathology revealed an inflammatory ulcer of the gastric antrum-pylorus with reactive hyperplastic lymph node, while the lesion in the right abdominal wall was a scar nodule. This case suggests that when multiple FDG-avid lesions accompany an atypical gastric ulcer, it can easily lead to misdiagnosis, and therefore more emphasis should be placed on histopathological analysis.
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spelling doaj.art-093a672932cc443abfb085374ffc95aa2022-12-21T23:29:53ZengElsevierRadiology Case Reports1930-04332022-05-0117513961401FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastasesDan Ruan, MD0Yanhong Wang, MM1Janyao Fang, MM2Xinyu Teng, MM3Beilei Li, MD, PhD4Department of Nuclear Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Fujian, 361015, ChinaDepartment of Nuclear Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Fujian, 361015, ChinaDepartment of Nuclear Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Fujian, 361015, ChinaDepartment of Nuclear Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Fujian, 361015, ChinaDepartment of Nuclear Medicine, Xiamen Branch, Zhongshan Hospital, Fudan University, Fujian, 361015, China; Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai, 20032, China; Nuclear Medicine Institute of Fudan University, Shanghai, 200032, China; Shanghai Institute of Medical Imaging, Shanghai, China; Corresponding author.Gastric cancer presents with similar clinical symptoms as gastric ulcer, and the morphologic features of gastroscopy overlap considerably. We report a 58-year-old man with the clinical presentation of recurrent gastric discomfort and black stools. A suspected malignant tumor of the gastric antrum-pylorus was observed on gastroscopy. Contrast-enhanced CT showed enhancement of the lesion. PET/CT revealed an FDG-avid lesion at the gastric antrum-pylorus, an intense FDG-uptake perigastric lymph node, and an enlarged nodule with high FDG uptake in the right abdominal wall. Subsequent surgical pathology revealed an inflammatory ulcer of the gastric antrum-pylorus with reactive hyperplastic lymph node, while the lesion in the right abdominal wall was a scar nodule. This case suggests that when multiple FDG-avid lesions accompany an atypical gastric ulcer, it can easily lead to misdiagnosis, and therefore more emphasis should be placed on histopathological analysis.http://www.sciencedirect.com/science/article/pii/S193004332200099118F-FDG PET/CTFDG-avid antrum-pylorus ulcerFDG-avid abdominal wall noduleMisdiagnosis
spellingShingle Dan Ruan, MD
Yanhong Wang, MM
Janyao Fang, MM
Xinyu Teng, MM
Beilei Li, MD, PhD
FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastases
Radiology Case Reports
18F-FDG PET/CT
FDG-avid antrum-pylorus ulcer
FDG-avid abdominal wall nodule
Misdiagnosis
title FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastases
title_full FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastases
title_fullStr FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastases
title_full_unstemmed FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastases
title_short FDG-avid antrum-pylorus ulcer, adjacent lymph node, and abdominal wall nodule mimicking gastric cancer with metastases
title_sort fdg avid antrum pylorus ulcer adjacent lymph node and abdominal wall nodule mimicking gastric cancer with metastases
topic 18F-FDG PET/CT
FDG-avid antrum-pylorus ulcer
FDG-avid abdominal wall nodule
Misdiagnosis
url http://www.sciencedirect.com/science/article/pii/S1930043322000991
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