“…Rarely, radiation recall phenomena have been described in different internal organs, including the lungs, esophagus, central nervous system (brainstem and optic nerve), gastrointestinal tract, musculoskeletal systems, heart, bladder, salivary glands, supraglottis, vagina, and oral mucosa [ 14 - 17 ]. Ge et al [ 18 ] emphasized that RRD may be the most visible sign of radiation recall affecting internal organs. In five cases of RRD in thoracic malignancies, RRD was accompanied by clinical and/or radiographic evidence of internal organ involvement [ 18 ].…”