The CT and MRI features of benign calvarium and skull base osteoblastoma.

Autor:	Li Y; Department of Radiology, Peking University Shenzhen Hospital, Shenzhen 518000, China., Wang B; Department of Radiology, Peking University Shenzhen Hospital, Shenzhen 518000, China., Feng C; Department of Radiology, Nan fang Hospital, Southern Medical University, Guangzhou 510515, China., Cheng G; Department of Radiology, Peking University Shenzhen Hospital, Shenzhen 518000, China., Luo Z; Department of Radiology, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China.
Jazyk:	angličtina
Zdroj:	The British journal of radiology [Br J Radiol] 2024 Mar 28; Vol. 97 (1156), pp. 779-786.
DOI:	10.1093/bjr/tqae027
Abstrakt:	Objective: We retrospectively reviewed the CT and MRI features of patients with benign osteoblastoma in the calvarium and skull base (CSBOB). Methods: Nine cases of pathologically confirmed benign CSBOB were analysed retrospectively. The patients had undergone CT and/or MRI. Tumour location, size, and imaging features were reviewed and recorded. Results: The patients included four males and five females with a mean age of 27.0 years (age 14-40 years). The tumours were located in the frontal bone in 3 patients, the occipital bone in 3 patients, and in the parietal bone, sphenoid bone, and skull base in 1 patient each. On CT, the tumours measured 5.1 ± 3.3 (1.8-8.4) cm. Seven tumours were shown to have caused expansile bony destruction with an eggshell appearance and varying degrees of calcification or matrix mineralization. Multiple septa were observed in 5 tumours. Intracranial growth was observed in 5 tumours. On MRI, 7 tumours showed heterogeneous hypo- to isointensity on T1WI. Heterogeneous high signal patterns with low signal rims and septa were observed in 6 tumours on T2WI, and 4 showed a fluid-fluid level. On contrast-enhanced imaging, 6 tumours showed peripheral and septal enhancement, and 2 showed the dural tail sign. Conclusions: Benign CSBOB is a rare tumour characterized by expansile bony destruction, septa, a sclerotic rim and calcification or matrix mineralization on CT and MRI. Advances in Knowledge: The findings from this study contribute to a better understanding of benign CSBOB and provide valuable imaging features that can aid in its diagnosis and differentiation from other tumours in the calvarium and skull base. (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Institute of Radiology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
Databáze:	MEDLINE
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