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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2020 May 14;108(1):227–241. doi: 10.1016/j.ijrobp.2020.05.011

Fig. 1.

Fig. 1.

An example of an abscopal effect observed on PET/CT scanning in a patient with metastatic TNBC treated with pembrolizumab and hypofractionated RT (30 Gy/5 fractions) to a breast mass. The red circle denotes the RT field. At 19 weeks, regression of tumor in the mediastinal lymph nodes outside the RT portal is observed.37 Abbreviations: CT = computed tomography; PET = positron emission tomography; RT = radiation therapy; TNBC = triple negative breast cancer.