Radiation recall dermatitis in cancer patients previously undergoing radiotherapy: a scoping review

To map the evidence related to radiation recall dermatitis (RRD) in cancer patients previously treated with radiotherapy.

A scoping review was conducted following the methodology outlined by the JBI Collaboration. The search was performed in PubMed, CINAHL, LILACS, Scopus, Web of Science Core Collection, Cochrane, and grey literature using Google Scholar and ProQuest on January 28, 2025. Studies published in any language and without restrictions on publication year were included.

This review incorporated 210 studies on RRD in cancer patients, with a predominance of case reports and case series (84.7%). Approximately 48% of cases were reported in breast cancer patients. Among these studies, 92 primary articles documented 201 instances of RRD. A significant association was identified with antineoplastic agents (73.6%), predominantly due to chemotherapy, with docetaxel identified as the most frequently reported agent (13.5%). The radiotherapy doses administered ranged from 8 to 65 Grays, and the time intervals between radiotherapy and the onset of the RRD-triggering agent varied widely, from hours to 40 years. This condition can cause symptoms such as erythema, dry and moist desquamation, edema, itching, pain, ulceration, necrosis, and bleeding.

RRD is a significant adverse event, particularly among women with breast cancer, most commonly associated with chemotherapy involving docetaxel and doxorubicin. COVID-19 infection and vaccination have also been reported as potential new triggers of RRD. Further research is needed to clarify the underlying mechanisms and to optimize therapeutic strategies for at-risk patients.