Smits HJG, Assili S, Kauw F, et al. - Researchers conducted this systematic review and meta-analysis to identify prognostic imaging variables of recurrent laryngeal or hypopharyngeal carcinoma after chemoradiotherapy. A systematic search of PubMed and EMBASE (1990–2020) was conducted. This review included 22 articles, 17 on computed tomography variables and 5 on magnetic resonance imaging variables. According to results, prognostic factors for recurrent laryngeal or hypopharyngeal carcinoma after chemoradiotherapy are pretreatment tumor volume and several subsites involvement.