Analysis of imaging and clinical features of posterior fossa teratoma
Li Rui
Zhang Maobai
Li Zhibing
Liang Tingyu
Huo Kai
Hao Jiehe
Abstract：Objective To investigate the imaging and clinical features of posterior fossa teratoma.Methods The CT and MRI data and clinical data of 5 patients with posterior fossa teratomas were analyzed respectively.The lesions were located in the vermis of the cerebellum in 4 cases and in the right pontocerebellar angle in 1 case.The posterior median suboccipital approach was adopted in 4 cases,and the retrosigmoidal approach in 1 case.Results Total tumor resection was achieved in 3 cases and subtotal resection in 2 cases.The postoperative pathology all indicated:mature cystic teratoma.Postoperative symptoms were mostly relieved,with 1 case of aseptic encephalitis,1 case of epilepsy with mental abnormalities,and 1 case of aggravated ataxia.All 5 patients were followed up for 3 months to 5 years,with 1 case of recurrence.Conclusions The posterior fossa teratoma is extremely rare,mostly occurring in the midline.Typical cases have specific imaging features,and atypical cases are mainly diagnosed based on pathology.Microsurgical resection is the main treatment method.
Keywords：teratomaposterior fossaradiographic featuremagnetic resonance imagingmicrosurgery
Publication Date：2024-01-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 8-10 )