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Rofo 2024; 196(02): 195-196
DOI: 10.1055/a-2123-3867
The Interesting Case

Atypical local laryngeal cancer recurrence mimicking thyroid uptake on 18F-FDG PET/CT

Atypisches lokales Larynxkarzinom-Rezidiv imitiert als entzündlicher thyreoidaler Uptake in der 18F-FDG PET/CT
Forough Kalantari 
1   Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, Paracelsus Medical University Salzburg, Salzburg, Austria (Ringgold ID: RIN31507)
2   School of medicine, Department of Nuclear medicine, Iran University of Medical Sciences, Tehran, Iran (the Islamic Republic of) (Ringgold ID: RIN440827)
,
Gundula Rendl
1   Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, Paracelsus Medical University Salzburg, Salzburg, Austria (Ringgold ID: RIN31507)
,
Stefan Hecht 
3   Department of Radiology, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria., Paracelsus Medical University Salzburg, Salzburg, Austria (Ringgold ID: RIN31507)
,
Christian Pirich
4   Department of Nuclear Medicine, Paracelsus Medical University Salzburg, Salzburg, Austria (Ringgold ID: RIN31507)
,
Mohsen Beheshti
1   Division of Molecular Imaging and Theranostics, Department of Nuclear Medicine, Paracelsus Medical University Salzburg, Salzburg, Austria (Ringgold ID: RIN31507)
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Introduction

Laryngeal cancer recurrence occurs in 30–50% of patients with T3 and T4 stages of the disease. Post-treatment changes and anatomic alterations may affect the accuracy of anatomical imaging modalities (Agrawal K, et al. Clinical radiology 2015; 70: 536–543). Hybrid 18F-FDG PET/CT imaging was shown to be promising in the assessment of recurrent laryngeal cancers (Plaxton NA, et al. American Journal of Roentgenology 2015; 205: W519–W531). In addition, surgery-induced thyroiditis, transient hyperthyroidism, and postoperative hypothyroidism have been well-reported after total laryngectomy in the literature. Therefore, knowledge of uncommon and atypical patterns of 18F-FDG uptake is crucial for accurate interpretation.



Publication History

Received: 14 February 2023

Accepted after revision: 12 June 2023

Article published online:
09 November 2023

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