FIG 2. Axial cranial CT scan (A) shows the ethmoid bone lesion with a mixture of ground-glass and cystic patterns. Four years later, a CT scan (B) obtained at the same level as that in A, shows progression of the lesion.
FIG 2. Axial cranial CT scan (A) shows the ethmoid bone lesion with a mixture of ground-glass and cystic patterns. Four years later, a CT scan (B) obtained at the same level as that in A, shows progression of the lesion.