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A rare tentorial mesenchymal chondrosarcoma in posterior cranial fossa: Case report
Affiliations- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu
- Department of Radiology, West China Hospital, Sichuan University, Chengdu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu
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Abstract
Intracranial extraskeletal mesenchymal chondrosarcoma is a very rare malignant tumor with predilection site of frontoparietal falx cerebri. Only few cases of mesenchymal chondrosarcoma in posterior cranial fossa are reported. Here, we report a 23-year-old young man with a dura-attached mass in left posterior cranial fossa misdiagnosed as a tentorial meningioma preoperatively. According to the following operation, the lesion was confirmed as mesenchymal chondrosarcoma surgically and pathologically. On MRI, the tumor was characterized by lobulated soft-tissue mass with dura-attached base, patchy calcifications and heterogeneous signal intensities. On contrast-enhanced MRI, it was well-defined, with marked enhancement. We consider that these imaging features above might remind us to consider the diagnosis of mesenchymal chondrosarcoma in posterior cranial fossa. The postoperative treatment of radiotherapy is still controversial. As for our case, according to the 24 months follow-up after postoperative γ-knife, our patient shows an optimistic prognosis so far.
Abstract
Intracranial extraskeletal mesenchymal chondrosarcoma is a very rare malignant tumor with predilection site of frontoparietal falx cerebri. Only few cases of mesenchymal chondrosarcoma in posterior cranial fossa are reported. Here, we report a 23-year-old young man with a dura-attached mass in left posterior cranial fossa misdiagnosed as a tentorial meningioma preoperatively. According to the following operation, the lesion was confirmed as mesenchymal chondrosarcoma surgically and pathologically. On MRI, the tumor was characterized by lobulated soft-tissue mass with dura-attached base, patchy calcifications and heterogeneous signal intensities. On contrast-enhanced MRI, it was well-defined, with marked enhancement. We consider that these imaging features above might remind us to consider the diagnosis of mesenchymal chondrosarcoma in posterior cranial fossa. The postoperative treatment of radiotherapy is still controversial. As for our case, according to the 24 months follow-up after postoperative γ-knife, our patient shows an optimistic prognosis so far.
Keywords
Posterior cranial fossa, Tentorium cerebella, Mesenchymal chondrosarcoma, Computerized Tomography, Magnetic Resonance Imaging
About this articleTitle
A rare tentorial mesenchymal chondrosarcoma in posterior cranial fossa: Case report
Journal
Neurologia i Neurochirurgia Polska
Issue
Pages
287-291
Page views
314
Article views/downloads
633
DOI
10.1016/j.pjnns.2014.06.001
Bibliographic record
Neurol Neurochir Pol 2014;48(4):287-291.
Keywords
Posterior cranial fossa
Tentorium cerebella
Mesenchymal chondrosarcoma
Computerized Tomography
Magnetic Resonance Imaging
Authors
Anqi Xiao
Zhenlin Li
Xin He
Chao You
