Objective:To investigate the clinical characteristics, pathological features and surgical efficacy of adult gangliogliomas.Methods:Seven patients with gangliogliomas underwent surgical treatment in our hospital from August 2010 to December 2021, were chosen; their clinical data were retrospectively analyzed, and the CT and MRI manifestations and histopathological features of gangliogliomas and surgical efficacy of these patients were concluded.Results:In these 7 patients, solid-mass type was identified in 1 patient, cystic-solid mixed type in 4 patients, and diffuse infiltrating type in 2 patients. The solid part showed slightly low or equal density on CT, and mostly showed slightly low signal on T1, slightly high signal on T2, high or slightly high signal on T2 FLAIR, and equisignal or slightly low signal on DWI of MRI. Immunohistochemical staining showed that in the tumor specimens, glial cell components were positive for glial fibrillary acidic protein, oligodendrocyte transcription factor and S-100 protein, and ganglion cell components were positive for neuronal nuclear antigen and synaptophysin. Gross total resection was achieved in 5 patients, subtotal resection in 1 patient, and partial resection in 1 patient; gangliogliomas without total resection were diffuse infiltrative type. The median Karnofsky performance status scores were 80. There was no death during the follow-up period of 7 months-11 years.Conclusions:Adult gangliogliomas are mostly cystic and solid lesions with clear boundary on imaging, and the histopathological characteristics of mixed neoplastic ganglion cells and glial cells are the main basis for their diagnosis. The surgical efficacy is usually good, but the diffuse infiltrating type is difficult to achieve total resection.

Objective:To investigate the clinical characteristics, pathological features and surgical efficacy of adult gangliogliomas.Methods:Seven patients with gangliogliomas underwent surgical treatment in our hospital from August 2010 to December 2021, were chosen; their clinical data were retrospectively analyzed, and the CT and MRI manifestations and histopathological features of gangliogliomas and surgical efficacy of these patients were concluded.Results:In these 7 patients, solid-mass type was identified in 1 patient, cystic-solid mixed type in 4 patients, and diffuse infiltrating type in 2 patients. The solid part showed slightly low or equal density on CT, and mostly showed slightly low signal on T1, slightly high signal on T2, high or slightly high signal on T2 FLAIR, and equisignal or slightly low signal on DWI of MRI. Immunohistochemical staining showed that in the tumor specimens, glial cell components were positive for glial fibrillary acidic protein, oligodendrocyte transcription factor and S-100 protein, and ganglion cell components were positive for neuronal nuclear antigen and synaptophysin. Gross total resection was achieved in 5 patients, subtotal resection in 1 patient, and partial resection in 1 patient; gangliogliomas without total resection were diffuse infiltrative type. The median Karnofsky performance status scores were 80. There was no death during the follow-up period of 7 months-11 years.Conclusions:Adult gangliogliomas are mostly cystic and solid lesions with clear boundary on imaging, and the histopathological characteristics of mixed neoplastic ganglion cells and glial cells are the main basis for their diagnosis. The surgical efficacy is usually good, but the diffuse infiltrating type is difficult to achieve total resection.