Cerebellar Liponeurocytoma In The Posterior Fossa: A Case Report And Review Of The Literature

Liponeurocytoma occurs primarily in the cerebellum, but a few cases have been documented to occur outside the cerebellum such as the lateral ventricle. However, liponeurocytoma is rarely observed at the bottom of the posterior fossa, and one case is reported in this study. The patient was a 54-year-old female who experienced headache for one year. MRI suggested that the root of the lesion was attached to the dura mater at the bottom of the posterior fossa. The base of the tumor was wide, and the boundary of the lesion with the cerebellum was clear. Flair imaging showed slight hyper signals within the lesion. The size of the tumor was approximately 2.5 cm, the lesion exhibited a regular pattern, and the edge was clear. During the surgery, the tumor was completely resected. The pathological examination and immunohistochemical diagnostic indicated cerebellar liponeurocytoma. Radiotherapy and chemotherapy were not implemented after surgery, whereas follow-up was performed for two years after surgery. The patient could manage her life independently, and her condition was excellent. Except learning the case in the paper, other cases of cerebellar liponeurocytoma were reported to occur outside the cerebellum. Different opinions on current treatment regimens were also reviewed in order to increase our understanding of cases of liponeurocytoma that occur outside the cerebellum, to avoid missed diagnoses and misdiagnoses, and to obtain the best treatment and prognosis.