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Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography

Sarcomas are a heterogeneous group of rare tumors and arise either from soft tissue or from bone. Soft-tissue sarcomas (STSs) initially metastasize to the lungs. Metastases to extrapulmonary sites such as liver, brain, and soft tissue distant from primary tumor usually develop later. However, cases...

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Autores principales: Shivdasani, Divya, Singh, Natasha, Pereira, Melvika, Zade, Anand
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5460309/
https://www.ncbi.nlm.nih.gov/pubmed/28670184
http://dx.doi.org/10.4103/1450-1147.207275
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author Shivdasani, Divya
Singh, Natasha
Pereira, Melvika
Zade, Anand
author_facet Shivdasani, Divya
Singh, Natasha
Pereira, Melvika
Zade, Anand
author_sort Shivdasani, Divya
collection PubMed
description Sarcomas are a heterogeneous group of rare tumors and arise either from soft tissue or from bone. Soft-tissue sarcomas (STSs) initially metastasize to the lungs. Metastases to extrapulmonary sites such as liver, brain, and soft tissue distant from primary tumor usually develop later. However, cases with isolated adrenal metastasis without disseminated disease have been reported in literature. We present a case of primary myxoid liposarcoma of the lower limb, in which staging (18)-F fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET-CT) scan detected a suspicious FDG avid adrenal lesion which eventually on resection was diagnosed as asymptomatic pheochromocytoma. Pheochromocytomas have been reported to demonstrate FDG uptake mimicking metastasis. Hence, while interpreting FDG PET-CT scans in the context of STSs, both the extrapulmonary metastatic potential of aggressive histological subtypes of sarcoma and rare possibility of FDG avid coexistent benign tumor should be taken into consideration.
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spelling pubmed-54603092017-07-01 Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography Shivdasani, Divya Singh, Natasha Pereira, Melvika Zade, Anand World J Nucl Med Case Report Sarcomas are a heterogeneous group of rare tumors and arise either from soft tissue or from bone. Soft-tissue sarcomas (STSs) initially metastasize to the lungs. Metastases to extrapulmonary sites such as liver, brain, and soft tissue distant from primary tumor usually develop later. However, cases with isolated adrenal metastasis without disseminated disease have been reported in literature. We present a case of primary myxoid liposarcoma of the lower limb, in which staging (18)-F fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET-CT) scan detected a suspicious FDG avid adrenal lesion which eventually on resection was diagnosed as asymptomatic pheochromocytoma. Pheochromocytomas have been reported to demonstrate FDG uptake mimicking metastasis. Hence, while interpreting FDG PET-CT scans in the context of STSs, both the extrapulmonary metastatic potential of aggressive histological subtypes of sarcoma and rare possibility of FDG avid coexistent benign tumor should be taken into consideration. Medknow Publications & Media Pvt Ltd 2017 /pmc/articles/PMC5460309/ /pubmed/28670184 http://dx.doi.org/10.4103/1450-1147.207275 Text en Copyright: © 2017 World Journal of Nuclear Medicine http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Case Report
Shivdasani, Divya
Singh, Natasha
Pereira, Melvika
Zade, Anand
Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography
title Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography
title_full Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography
title_fullStr Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography
title_full_unstemmed Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography
title_short Unusual Asymptomatic Fluorodeoxyglucose Avid Pheochromocytoma in a Case of Myxoid Liposarcoma of the Extremity on (18)-F Fluorodeoxyglucose Positron Emission Tomography-computed Tomography
title_sort unusual asymptomatic fluorodeoxyglucose avid pheochromocytoma in a case of myxoid liposarcoma of the extremity on (18)-f fluorodeoxyglucose positron emission tomography-computed tomography
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5460309/
https://www.ncbi.nlm.nih.gov/pubmed/28670184
http://dx.doi.org/10.4103/1450-1147.207275
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