Consecutive Development of Ependymoma and Glioblastoma in a Single Patient: A Case Report

Introduction: The simultaneous occurrence of ependymoma and glioblastoma in a single patient is an exceptionally rare phenomenon, with limited documented cases in the medical literature.Case Report: This article presents a compelling case study of a 53-yearold female who sequentially developed these two distinct primary brain tumors. The patient initially underwent neurosurgery for a subependymoma in 2010 and later presented with motor and sensory symptoms, leading to the diagnosis of glioblastoma. A diagnostic stereotactic brain biopsy confirmed the presence of a high-grade oligodendroglioma. Despite postoperative complications, the patient’s recovery has been favorable with no epileptic recurrence. The discussion highlights the distinct molecular and clinical heterogeneity of ependymoma and glioblastoma and the lack of reported cases featuring their consecutive occurrence. The underlying mechanisms behind such occurrences remain poorly understood and warrant further investigation.Conclusion: This case underscores the importance of deepening our comprehension of consecutive primary brain tumors to optimize diagnosis, treatment planning, and patient outcomes.