Paula Pilar Morales Cejas,Yanire Sánchez Medina,Marta García Berrocal, Luis Francisco Gómez Perals, Leptomeningeal Cyst in the Adult: Case Report and Review of the Literature Surgical Case Reports 2021 2613-5965 http://dx.doi.org/10.31487/j.SCR.2021.02.05 https://www.sciencerepository.org/leptomeningeal-cyst-in-the-adult-case-report-and-review_SCR-2021-2-105 Abstract: Background: Leptomeningeal cysts are a rare complication of childhood fractures, being very rare in adulthood and usually related to previous trauma generated in children. Case Presentation: We present a case of “growing fracture” in a 70-year-old woman with a history of head injury in childhood, who clinically debuted with paresthesia-dysesthesia in the left hemicranium and hypersensitivity and pain in the affected area, and who was treated with surgical treatment. Conclusion: We review the pathogenesis, diagnosis and treatment of this injury today.Keywords: Leptomeningeal cyst, growing fracture, skull fracture, adult, dural defect, cranioplastic