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  Indian J Med Microbiol
 

Figure 1: (a) Axial positron emission tomography/computed tomography fusion and (b) maximum intensity projection images of 18F-fluorodeoxyglucose positron emission tomography immediately after surgery. Increased uptake was seen in the residual tumor located in the maxillary sinus (arrows) and diffuse bone marrow uptake was observed, suggesting a granulocyte colony-stimulating factor-producing tumor. (c) Axial positron emission tomography/computed tomography fusion and (d) maximum intensity projection images of 18F-fluorodeoxyglucose positron emission tomography 6 months after the completion of postoperative chemoradiation therapy when the recurrence was suspected. High uptake was observed in the recurrent tumor in the same place as the operated site (red arrow). Mild diffuse bone marrow uptake can be seen in addition to the uptake in the recurrent tumor (white arrow)

Figure 1: (a) Axial positron emission tomography/computed tomography fusion and (b) maximum intensity projection images of <sup>18</sup>F-fluorodeoxyglucose positron emission tomography immediately after surgery. Increased uptake was seen in the residual tumor located in the maxillary sinus (arrows) and diffuse bone marrow uptake was observed, suggesting a granulocyte colony-stimulating factor-producing tumor. (c) Axial positron emission tomography/computed tomography fusion and (d) maximum intensity projection images of <sup>18</sup>F-fluorodeoxyglucose positron emission tomography 6 months after the completion of postoperative chemoradiation therapy when the recurrence was suspected. High uptake was observed in the recurrent tumor in the same place as the operated site (red arrow). Mild diffuse bone marrow uptake can be seen in addition to the uptake in the recurrent tumor (white arrow)