Two cases with solitary pulmonary nodule due to non-tuberculous mycobacterial infection showing intense 18F-fluorodeoxyglucose uptake on positron emission tomography scan

Geriatrics & Gerontology International
Eriko KawateHideki Takahashi

Abstract

We report an 81-year-old man and a 65-year-old woman with a solitary pulmonary nodule (SPN) due to infection with non-tuberculous mycobacteria (NTM). In each case, the nodule showed a high (18)F-fluorodeoxyglucose (FDG) uptake with the maximum standardized uptake values (SUV) of 13.2 and 4.8 on positron emission tomography (PET) imaging, respectively. Both cases required partial lung resection for confirmation of the histological diagnosis. A review of six reported patients with SPN due to NTM infections showed that the SUV of FDG was more than 4.0 in the nodules of all cases. Positive results on FDG-PET should be interpreted cautiously when evaluating SPN, especially in patients having predisposing factors for NTM infections.

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Citations

Oct 28, 2015·Journal of Medical Case Reports·Takanori AsakuraTomoko Betsuyaku
Jul 26, 2011·AJR. American Journal of Roentgenology·Amir KashefiDavid K Shelton
Sep 19, 2017·Current Opinion in Infectious Diseases·Abby DouglasMonica Slavin
Mar 2, 2011·Current Opinion in Pulmonary Medicine·Jamshed BomanjiAlimuddin Zumla
Jun 8, 2017·Molecular and Clinical Oncology·Hidehiro WatanabeTetsuya Matsumoto
May 5, 2021·Romanian Journal of Internal Medicine = Revue Roumaine De Médecine Interne·Kengo NishinoHiroaki Satoh

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