Pulmonary Solitary Nodule in Patient with Prostatic Adenocarcinoma in Follow-Up

Fig. 69.1

At the posterior segment of the upper lobe of the left lung, CT-PET shows a parenchymal nodule with ill-defined margins, at the basis of the parietal pleura, that seems to infiltrate adjacent tissues due the presence of spikes. The biological activity of the lesion is low

Fig. 69.2

The PET-CT scan shows a slightly increased prostate in size, with inhomogeneous density. There were no focal lesions characterized by high metabolism because prostatic adenocarcinomas have little affinity for FDG

69.5 Key Points

In patients without a known malignancy, the presence of multiple pulmonary nodules ≥ 1 cm in diameter is most commonly due to metastatic lesions, and nodules < 5 mm in diameter, which overlap the visceral pleura or interlobular septa and are detected incidentally, are most commonly benign lesions.

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