case_images: PMC7675887_01
case_images: PMC7675887_02
case_images: An axial (left) and sagittal (right) dose distribution of the proton beam
  radiotherapy plan.
case_images: 10.1177_2036361320971943-fig1.jpg
case_images: PMC7675887_02_10.1177_2036361320971943-fig1.jpg
case_images: fig1-2036361320971943
case_images: After receiving 3780 cGy of out of a planned course of 5940 cGy in 180 cGy fractions with proton beam radiotherapy (Figure 1), the patient was found to have innumerable small, low-attenuation masses in the liver, concerning for metastatic disease; biopsy of a liver mass confirmed metastatic melanoma.