Osteochondromas are tumors composed of both bony and cartilaginous elements. These slow-growing lesions commonly occur in the appendicular skeleton. Intracranial presentation is extremely rare with very isolated case reports in the literature. We present here the first case of an osteochondroma arising from the tentorium cerebelli with a nonsystematic review of all cases of intracranial osteochondromas reported in the English literature till now. A literature search was performed by two authors independently using PubMed and Google Scholar search engines. Osteochondromas in the intracranial compartment were included. Baseline parameters like age, sex, site, radiological findings, treatment outcomes, and complications were analyzed. Thirty-two cases were included in the review. The mean age of presentation was 33 years and males were affected more than females. The skull base was the most common site of origin followed by the convexity and falcine dura. Gross total excision was achieved in all cases involving the supratentorial compartment (n = 14). Skull base osteochondroma excision can lead to serious complications due to iatrogenic injury to critical neurovascular structures. Surgery is the primary modality of treatment and there is no role for radiotherapy and chemotherapy. Multiple sections of the tumor should be subjected to histopathological examination to avoid missing low-grade chondrosarcomas.

R.S. developed the concept and design of the study, edited the manuscript, and is the guarantor. S.D. and M.C.S performed the literature search, data acquisition, data analysis, and statistical analysis. S.D. prepared the manuscript. R.S. and M.C.S. reviewed the manuscript.

Article published online:
16 September 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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