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Spindle cell sarcoma of pulmonary artery mimicking thromboembolism with lung metastasis detected in fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography.

Authors
  • Kamaleshwaran, Koramadai Karuppusamy1
  • Pattabiraman, Vr2
  • Mehta, Sangita3
  • Mohanan, Vyshakh1
  • Shinto, Ajit Sugunan1
  • 1 Department of Nuclear Medicine and Positron Emission Tomography/Computed Tomography, Kovai Medical Centre and Hospital Limited, Coimbatore, Tamil Nadu, India. , (India)
  • 2 Department of Pulmonology, Kovai Medical Centre and Hospital Limited, Coimbatore, Tamil Nadu, India. , (India)
  • 3 Department of Pathology, Kovai Medical Centre and Hospital Limited, Coimbatore, Tamil Nadu, India. , (India)
Type
Published Article
Journal
Indian journal of nuclear medicine : IJNM : the official journal of the Society of Nuclear Medicine, India
Publication Date
Oct 01, 2014
Volume
29
Issue
4
Pages
249–251
Identifiers
DOI: 10.4103/0972-3919.142631
PMID: 25400365
Source
Medline
Keywords
License
Unknown

Abstract

Pulmonary artery sarcoma (PAS), although rare, must be considered in the differential diagnosis of pulmonary thromboembolism (PTE). This tumor is highly malignant and the prognosis is very poor. As much as the standardized uptake values (SUVs) at fluorine-18 fluorodeoxyglucose positron emission tomography (18F-FDG PET) have helped in differentiating between benign and malignant tumors, visualization of a low-attenuation filling defect within a pulmonary artery on contrast-enhanced chest computed tomography (CT) can be suggestive of a malignancy, such as PAS, if the lesion shows high FDG uptake at PET. We present a case of PAS that showed high FDG uptake on integrated FDG PET/CT and with lung metastasis. Patient underwent endoscopic bronchial ultrasound-transbronchial needle aspiration (EBUS-TBNA), which confirmed spindle cell sarcoma.

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