Fig. 1.

Patient with multifocal right-sided breast cancer with [¹⁸F]FDG-PET/CT performed in supine and prone position. Images A and C were acquired in supine position and images B and D were acquired in prone position, showing a multifocal FDG-avid primary breast cancer and multiple FDG-positive axillary lymph node metastases, respectively. In this patient, one additional FDG-positive ALN was counted in prone position compared to supine position