Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review

Introduction. Inflammatory myopathies are a rare group of diseases characterized by proximal weakness. Incidence ranges from 7.98/million/year and prevalence at 14/100,000. The utility of [18F] fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) scan is increasing fo...

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Main Authors: Juan Pablo Rivas-de Noriega, Javier Andrés Galnares-Olalde, Javier Zúñiga-Varga, Juan Pablo Herrera-Félix, Marco Antonio Alegría-Loyola, Alonso Turrent-Carriles
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Case Reports in Rheumatology
Online Access:http://dx.doi.org/10.1155/2018/8398453
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author Juan Pablo Rivas-de Noriega
Javier Andrés Galnares-Olalde
Javier Zúñiga-Varga
Juan Pablo Herrera-Félix
Marco Antonio Alegría-Loyola
Alonso Turrent-Carriles
author_facet Juan Pablo Rivas-de Noriega
Javier Andrés Galnares-Olalde
Javier Zúñiga-Varga
Juan Pablo Herrera-Félix
Marco Antonio Alegría-Loyola
Alonso Turrent-Carriles
author_sort Juan Pablo Rivas-de Noriega
collection DOAJ
description Introduction. Inflammatory myopathies are a rare group of diseases characterized by proximal weakness. Incidence ranges from 7.98/million/year and prevalence at 14/100,000. The utility of [18F] fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) scan is increasing for the complementary diagnosis of myopathies. Case Report. An 84-year-old male was admitted with a history of difficulty rising from a chair and a fall. Laboratory results showed increased creatine kinase levels of more than 50 times the normal reference values. Electromyography (EMG) showed myopathic changes, and FDG-PET/CT scan showed increased FDG uptake in bilateral quadriceps. A biopsy was performed revealing lymphocytic predominant infiltrates and myonecrosis. Prednisone and intravenous immunoglobulin (IVIG) were administered with strength improvement. The patient was discharged for further follow-up. Discussion. FDG-PET/CT in inflammatory diseases has proven useful as muscle fibers have increased FDG uptake. In some cases, FDG-PET/CT is also useful in determining associated neoplastic diseases.
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spelling doaj-art-c2599eeab4c5410188157cdc4b4223a92025-02-03T01:24:20ZengWileyCase Reports in Rheumatology2090-68892090-68972018-01-01201810.1155/2018/83984538398453Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature ReviewJuan Pablo Rivas-de Noriega0Javier Andrés Galnares-Olalde1Javier Zúñiga-Varga2Juan Pablo Herrera-Félix3Marco Antonio Alegría-Loyola4Alonso Turrent-Carriles5Internal Medicine Service, The American British Cowdray Medical Center IAP, Mexico City, MexicoInternal Medicine Service, The American British Cowdray Medical Center IAP, Mexico City, MexicoNephrology Service, The American British Cowdray Medical Center IAP, Mexico City, MexicoNephrology Service, The American British Cowdray Medical Center IAP, Mexico City, MexicoNeurology Service, The American British Cowdray Medical Center IAP, Mexico City, MexicoRheumatology Service, The American British Cowdray Medical Center IAP, Mexico City, MexicoIntroduction. Inflammatory myopathies are a rare group of diseases characterized by proximal weakness. Incidence ranges from 7.98/million/year and prevalence at 14/100,000. The utility of [18F] fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) scan is increasing for the complementary diagnosis of myopathies. Case Report. An 84-year-old male was admitted with a history of difficulty rising from a chair and a fall. Laboratory results showed increased creatine kinase levels of more than 50 times the normal reference values. Electromyography (EMG) showed myopathic changes, and FDG-PET/CT scan showed increased FDG uptake in bilateral quadriceps. A biopsy was performed revealing lymphocytic predominant infiltrates and myonecrosis. Prednisone and intravenous immunoglobulin (IVIG) were administered with strength improvement. The patient was discharged for further follow-up. Discussion. FDG-PET/CT in inflammatory diseases has proven useful as muscle fibers have increased FDG uptake. In some cases, FDG-PET/CT is also useful in determining associated neoplastic diseases.http://dx.doi.org/10.1155/2018/8398453
spellingShingle Juan Pablo Rivas-de Noriega
Javier Andrés Galnares-Olalde
Javier Zúñiga-Varga
Juan Pablo Herrera-Félix
Marco Antonio Alegría-Loyola
Alonso Turrent-Carriles
Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review
Case Reports in Rheumatology
title Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review
title_full Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review
title_fullStr Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review
title_full_unstemmed Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review
title_short Utility of [18F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scan in Inflammatory Myopathies: Case Report and Literature Review
title_sort utility of 18f fluorodeoxyglucose positron emission tomography computed tomography scan in inflammatory myopathies case report and literature review
url http://dx.doi.org/10.1155/2018/8398453
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