IgG4-Related Disease Simulating Carcinoma Colon with Diffuse Peritoneal Carcinomatosis on 18F-FDG PET/CT

Shelvin Kumar Vadi; Ashwin Singh Parihar; Rajender Kumar; Harmandeep Singh; Bhagwant Rai Mittal; Amanjit Bal; Saroj Kumar Sinha

doi:10.1097/RLU.0000000000002140

IgG4-Related Disease Simulating Carcinoma Colon with Diffuse Peritoneal Carcinomatosis on 18F-FDG PET/CT

Shelvin Kumar Vadi, Ashwin Singh Parihar, Rajender Kumar, Harmandeep Singh, Bhagwant Rai Mittal, Amanjit Bal, Saroj Kumar Sinha

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

IgG4-related disease (IgG4-RD) continues to be a diagnostic challenge and a great mimicker of malignancies. We report here a case of young man who presented with subacute intestinal obstruction with initial imaging and clinical features suggestive of carcinoma colon. ¹⁸F-FDG PET/CT showed diffuse peritoneal carcinomatosis pattern typically seen with abdominal malignancies. However, the histopathology and the raised IgG4 levels diagnosed it to be IgG4-RD. Although ¹⁸F-FDG PET/CT has typical patterns corresponding to the multisystemic involvement of IgG4-RD, the index case did not show any such findings.

Original language	English
Pages (from-to)	e247-e249
Journal	Clinical nuclear medicine
Volume	43
Issue number	7
DOIs	https://doi.org/10.1097/RLU.0000000000002140
State	Published - Jul 1 2018

Keywords

F-FDG PET/CT
IgG4-RD
carcinoma colon
peritoneal carcinomatosis

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title = "IgG4-Related Disease Simulating Carcinoma Colon with Diffuse Peritoneal Carcinomatosis on 18F-FDG PET/CT",

abstract = "IgG4-related disease (IgG4-RD) continues to be a diagnostic challenge and a great mimicker of malignancies. We report here a case of young man who presented with subacute intestinal obstruction with initial imaging and clinical features suggestive of carcinoma colon. 18F-FDG PET/CT showed diffuse peritoneal carcinomatosis pattern typically seen with abdominal malignancies. However, the histopathology and the raised IgG4 levels diagnosed it to be IgG4-RD. Although 18F-FDG PET/CT has typical patterns corresponding to the multisystemic involvement of IgG4-RD, the index case did not show any such findings.",

keywords = "F-FDG PET/CT, IgG4-RD, carcinoma colon, peritoneal carcinomatosis",

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AU - Vadi, Shelvin Kumar

AU - Parihar, Ashwin Singh

AU - Kumar, Rajender

AU - Singh, Harmandeep

AU - Mittal, Bhagwant Rai

AU - Bal, Amanjit

AU - Sinha, Saroj Kumar

PY - 2018/7/1

Y1 - 2018/7/1

N2 - IgG4-related disease (IgG4-RD) continues to be a diagnostic challenge and a great mimicker of malignancies. We report here a case of young man who presented with subacute intestinal obstruction with initial imaging and clinical features suggestive of carcinoma colon. 18F-FDG PET/CT showed diffuse peritoneal carcinomatosis pattern typically seen with abdominal malignancies. However, the histopathology and the raised IgG4 levels diagnosed it to be IgG4-RD. Although 18F-FDG PET/CT has typical patterns corresponding to the multisystemic involvement of IgG4-RD, the index case did not show any such findings.

AB - IgG4-related disease (IgG4-RD) continues to be a diagnostic challenge and a great mimicker of malignancies. We report here a case of young man who presented with subacute intestinal obstruction with initial imaging and clinical features suggestive of carcinoma colon. 18F-FDG PET/CT showed diffuse peritoneal carcinomatosis pattern typically seen with abdominal malignancies. However, the histopathology and the raised IgG4 levels diagnosed it to be IgG4-RD. Although 18F-FDG PET/CT has typical patterns corresponding to the multisystemic involvement of IgG4-RD, the index case did not show any such findings.

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IgG4-Related Disease Simulating Carcinoma Colon with Diffuse Peritoneal Carcinomatosis on 18F-FDG PET/CT

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Keywords

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