PMC7569209_01
Left: CT chest showing a 6 x 4.7 x 3.3 cm mass-like opacity in the right lower lobe along with a right-sided pleural effusion. Right: Repeat CT chest 4 months later showing near resolution of the right lower lobe opacity.
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A computed tomography (CT) of his chest showed a 6 x 4.7 x 3.3 cm right lower lobe mass-like density, enlarged right hilar lymph node measuring 1.5 cm, and scattered pulmonary nodules (Fig. 1). A repeat CT scan 4 months later showed a reduction in the right lower lobe mass, hilar lymph node, and resolution of the right pleural effusion (Fig. 1).
Left: PET scan showing markedly PET-positive right hilar lymph node. Right: PET scan revealing markedly PET-positive right lower lobe mass.
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A positron emission tomography (PET) scan revealed a markedly PET positive right lower lobe pulmonary mass, right hilar lymph node, mediastinal lymph nodes, and osseous lesions concerning for a metastatic disease (Fig. 2).
Lung biopsy showing non-caseating granulomas (black arrows).
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A subsequent CT guided biopsy of the right lower lobe opacity revealed non-necrotizing granulomas, with no evidence of malignancy (Fig. 3).