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Teflon–induced granuloma: a source of false positive positron emission tomography and computerized tomography interpretation

Published online by Cambridge University Press:  08 March 2006

Richard J.D. Hewitt ,
Arvind Singh  and
Michael J. Wareing
Richard J.D. Hewitt
Affiliation:
Department of Otolaryngology: Head & Neck Surgery, St Bartholomew’s & The Royal London Hospitals, London, UK
Arvind Singh
Affiliation:
Department of Otolaryngology: Head & Neck Surgery, St Bartholomew’s & The Royal London Hospitals, London, UK
Michael J. Wareing
Affiliation:
Department of Otolaryngology: Head & Neck Surgery, St Bartholomew’s & The Royal London Hospitals, London, UK
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Abstract

Patients diagnosed with malignancy often undergo combined positron emissiontomography (PET) and computerized tomography (CT) to investigate possible metastases. This report presents a case in which, in the investigation of suspected pulmonary malignancy, combined PET and CT images suggested a malignant lesion at the level of the vocal fold. Biopsy of the lesion, however, confirmed the clinical diagnosis of a Teflon granuloma. The case highlights the potential for a false positive report during scanning of patients who have had vocal fold injection.

Keywords

Polytetrafluoroethylene TomographyFalse Positive ReactionsLaryngeal Neoplasms
Type
Research Article
Information
The Journal of Laryngology & Otology , Volume 118 , Issue 10 , October 2004 , pp. 822 - 824
Copyright
© 2004 Royal Society of Medicine Press

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