Case report reveals challenges in diagnosing invasive adenocarcinoma and clear cell stromal tumor in pulmonary lesions, suggesting the need for careful evaluation.
We present a diagnostically challenging case involving a 50-year-old woman with 2 FDG-avid cystic pulmonary lesions identified on PET/CT. The left lower lobe lesion, showing moderate FDG uptake, was confirmed by pathology as invasive nonmucinous adenocarcinoma. In contrast, the right upper lobe lesion demonstrated higher avidity than the one in the left lung but was ultimately diagnosed as a rare benign clear cell stromal tumor.
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Tang et al. (2025) studied this question.
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