Sir,
We read with much great interest the article of Salunke et al.[[1]] Bone formation in meningiomas can be scattered, focal (eccentric or centrally).
The latter is the case in our patient, a 50-year-old male who was referred for magnetic
resonance imaging (MRI) from the temporal bone because of daily head pressure and
tinnitus. MRI showed an incidental high-density lesion with central calcification
and moderate perilesional edema at the right border of the lesion, most probably a
planum sphenoidale meningioma [[Figure 1]].
Figure 1: (a) Hyperintense (T2 - magnetic resonance imaging) lesion, with a diameter of 36
mm, with a hypointense center (T2 - magnetic resonance imaging), suggesting central
calcification/ossification. (b) Dried pineapple slices resembling the meningioma pattern
Surgical resection revealed a lesion with central calcification/ossification, firmly
attached to the olfactory nerves. Histopathology disclosed a meningothelial meningioma
[[Figure 2]].
Figure 2: Mainly meningothelial meningioma but the presence of psammoma bodies, bone spicules,
and osteoblasts suggests the metaplastic bone formation in the tumor (H and E, xlQ)
The lesion resembled a dry pineapple slice with crenelated central margin due to the
central ossification in contrast with osteoblastic meningiomas with diffuse ossification
with chicken-wire pattern or with eccentric ossification with turtle-shell pattern.[[1]],[[2]]
