Dural osteomas are a cause of focal intracranial calcification (colloquially known as brain stones). They are difficult to differentiate from an ossified "burnt out" meningiomas and ossification of the falx. Some reports are actually contradictory 1,4, suggesting that at least some lesions have been misclassified.
Rarely, intracranial osteomas are identified without a dural attachment 3.
- 1. Cheon JE, Kim JE, Yang HJ. CT and pathologic findings of a case of subdural osteoma. Korean journal of radiology. 3 (3): 211-3. doi:10.3348/kjr.2002.3.3.211 - Pubmed
- 2. Celzo FG, Venstermans C, De Belder F, Van Goethem J, van den Hauwe L, van der Zijden T, Voormolen M, Menovsky T, Maas A, Parizel PM. Brain stones revisited-between a rock and a hard place. Insights into imaging. doi:10.1007/s13244-013-0279-z - Pubmed
- 3. Lee ST, Lui TN. Intracerebral osteoma: case report. British journal of neurosurgery. 11 (3): 250-2. Pubmed
- 4. Kim KS, Rogers LF, Lee C. The dural lucent line: characteristic sign of hyperostosing meningioma en plaque. AJR. American journal of roentgenology. 141 (6): 1217-21. doi:10.2214/ajr.141.6.1217 - Pubmed