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BACKGROUND: Surgical excision is the paradigm treatment option for non-melanoma skin cancer (NMSC), however intralesional fluorouracil (IL 5-FU) is an efficacious alternative and superior to other chemotherapy agents in NMSC. Yet, little summative data exists on the topic. OBJECTIVE: To assess the efficacy of IL 5-FU in the treatment of NMSC. METHODS AND MATERIALS: A systematic review was performed using PubMed, Embase and Web of Science databases. 19 studies were included. ANOVA test was used to compare the duration of lesion prior to therapy and resolution time following IL 5-FU treatment. A two-way proportion test was performed to compare the clearance rate between squamous cell carcinoma (SCC), basal cell carcinoma (BCC), and keratoacanthoma (KA). RESULTS: There was no significant difference between the clearance rate of SCC and BCC after IL 5-FU therapy (87 % vs 91.4%, respectively; P=0.2); however, the clearance rate of both SCC and BCC was significantly greater than that of KA (74.5%; P0.3). CONCLUSION: While majority of data is derived from individual cases, IL 5-FU achieved higher clearance rate in SCC and BCC groups than in KA group. J Drugs Dermatol. 2021;20(2):192-198. doi:10.36849/JDD.5518.
Maghfour et al. (2021) studied this question.