Conventional Magnetic Resonance Imaging (MRI) and histopathology agreement for the diagnosis of intracranial meningioma at Dr. Soetomo General Hospital, Surabaya, January 2016–December 2021: a single center study

Abstract

Link of Video Abstract: https://youtu.be/OG7qXwNHzHQ Background: Meningioma, a prevalent intracranial neoplasm, ranks among the most frequently encountered tumors within the cranial cavity. The utilization of Magnetic Resonance Imaging (MRI) in the diagnostic process of meningioma has proven to be highly valuable. This study aims to evaluate the Conventional-MRI and histopathology agreement for the diagnosis of intracranial meningioma at Dr. Soetomo General Hospital, Surabaya. Methods: This study presents a diagnostic test and retrospective case-control analysis to evaluate the precision of head MRI in diagnosing intracranial meningioma, as confirmed by histopathological examination. The research was conducted at Dr. Soetomo Surabaya General Hospital from January 2016 to December 2021. Sample size calculations were performed on a cohort of patients diagnosed with intracranial meningioma who underwent head magnetic resonance imaging (MRI) scans and histopathological examinations at the Radiology and Anatomical Pathology Installation of Dr. Soetomo General Hospital. Only patients who satisfied the predetermined inclusion and exclusion criteria were included in the study. Data were analyzed using SPSS version 25.0 for Windows. Results: At the time of diagnosis, it was observed that the average diameter of grade II/III meningioma was 6.6 ± 1.5 cm, which was found to be greater than the average diameter of grade I meningioma, measuring 4 ± 1.92 cm. The prevalence of grade I meningioma was higher in the skull base region higher in the skull base region, accounting for approximately 36% of cases. Conversely, grade II/III meningioma was found more frequently in the non-skull base area, constituting approximately 76% of cases. In our investigation, it was observed that there exists a higher occurrence of irregular border shape in grade II/III meningioma, accounting for approximately 75% of cases, as compared to grade I meningioma, which only accounts for 14.2% of cases. The presence of contrast enhancement in meningiomas can provide valuable insights into their histological grade. Grade II/III meningiomas exhibit a higher degree of contrast enhancement, which is observed to be heterogeneously distributed in approximately 75% of cases. Conclusion: This study highlights the potential of MRI as a valuable tool in assessing the grade of meningioma while emphasizing the importance of considering other diagnostic modalities and clinical factors to ensure accurate diagnosis and treatment decisions.