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

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 18F‐fluorodeoxyglucose (FDG) uptake with the maximum standardized uptake values (SUV) of 13.2 and 4.8 on positr...

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Bibliographic Details
Published in:Geriatrics & gerontology international 2010-07, Vol.10 (3), p.251-254
Main Authors: Kawate, Eriko, Yamazaki, Mariko, Kohno, Tadashi, Fujimori, Sakashi, Takahashi, Hideki
Format: Article
Language:English
Subjects:
18F‐fluorodeoxyglucose positron emission tomography
Aged
Aged, 80 and over
Female
Fluorodeoxyglucose F18
Geriatrics
granuloma
Humans
Infection
Infections
Lung
lung cancer
Lung diseases
Male
Mycobacterium
Mycobacterium Infections, Nontuberculous - diagnostic imaging
Nodules
Nontuberculous Mycobacteria - isolation & purification
non‐tuberculous mycobacteria
Positron emission tomography
Radiopharmaceuticals
solitary pulmonary nodule
Solitary Pulmonary Nodule - diagnostic imaging
Solitary Pulmonary Nodule - microbiology
Tomography
Tomography, X-Ray Computed
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Summary: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 18F‐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. Geriatr Gerontol Int 2010; 10: 251–254.
ISSN:1444-1586
1447-0594
DOI:10.1111/j.1447-0594.2010.00619.x