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  Indian J Med Microbiol
 

Figure 2: (a) Maximum intensity projection and fused images of 18F-fluorodeoxyglucose positron emission tomography/computed tomography showing intensely fluorodeoxyglucose-avid multiple mediastinal lymph nodal lesions, three liver lesions, large-sized soft-tissue lesion on the left thoracic region and multiple skeletal lesions. Fused transaxial slices of 18F-fluorodeoxyglucose positron emission tomography/computed tomography demonstrating intensely fluorodeoxyglucose avid enlarged right paratracheal lymph nodes (white arrow), fluorodeoxyglucose avid lytic lesion in the right humerus, intense fluorodeoxyglucose uptake in well-defined segment III liver lesion (white arrow) and intensely fluorodeoxyglucose-avid soft-tissue lesion involving and destroying left-sided 5th rib (white arrow) and fluorodeoxyglucose-avid lytic lesion in D6 vertebra. (b) Posttherapy 131I radioiodine scan showing good tracer concentration in thyroid bed and soft-tissue lesion involving left-sided 5th rib (black arrow) and faint tracer uptake in right humerus and right-sided lung lesions (black arrows), while the other skeletal, pulmonary and hilar nodal lesions were negative on 131I (the metastatic urinary bladder lesion was not present during the 131I radioiodine scan, as the patient had undergone complete excision during biopsy of the same prethyroidectomy)

Figure 2: (a) Maximum intensity projection and fused images of <sup>18</sup>F-fluorodeoxyglucose positron emission tomography/computed tomography showing intensely fluorodeoxyglucose-avid multiple mediastinal lymph nodal lesions, three liver lesions, large-sized soft-tissue lesion on the left thoracic region and multiple skeletal lesions. Fused transaxial slices of <sup>18</sup>F-fluorodeoxyglucose positron emission tomography/computed tomography demonstrating intensely fluorodeoxyglucose avid enlarged right paratracheal lymph nodes (white arrow), fluorodeoxyglucose avid lytic lesion in the right humerus, intense fluorodeoxyglucose uptake in well-defined segment III liver lesion (white arrow) and intensely fluorodeoxyglucose-avid soft-tissue lesion involving and destroying left-sided 5<sup>th</sup> rib (white arrow) and fluorodeoxyglucose-avid lytic lesion in D6 vertebra. (b) Posttherapy <sup>131</sup>I radioiodine scan showing good tracer concentration in thyroid bed and soft-tissue lesion involving left-sided 5<sup>th</sup> rib (black arrow) and faint tracer uptake in right humerus and right-sided lung lesions (black arrows), while the other skeletal, pulmonary and hilar nodal lesions were negative on <sup>131</sup>I (the metastatic urinary bladder lesion was not present during the <sup>131</sup>I radioiodine scan, as the patient had undergone complete excision during biopsy of the same prethyroidectomy)