PMC5398648_01
In the case 1, multiple bone metastases were suspected by a positron emission tomography-computed tomography in the pelvic bone (SUVmax = 2.94).
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Multiple bone metastases were suspected by a PET/CT in the spine, sternum, ribs, and pelvic bone (Figure 1).
PMC5398648_02
PMC5398648_03
Case 3 was suspected of right recurrent nerve lymph node metastasis by preoperative positron emission tomography-computed tomography (SUVmax = 3.00).
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He was suspected of lymph node metastasis of right recurrent nerve lymph node (Figure 2) by preoperative PET/CT.
Pathological finding of case 3 revealed scattered silicotic nodules in resected lymph nodes with infiltration of histiocytosis to sinusoid.
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Scattered silicotic nodules and inflammatory lymphadenopathy might be caused by pneumoconiosis (Figure 3).