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Insights into Imaging
Fig. 13 | Insights into Imaging

Fig. 13

From: What's that smell? A pictorial review of the olfactory pathways and imaging assessment of the myriad pathologies that can affect them

Fig. 13

Olfactory groove meningioma. 51-year-old male presenting with headache. A large central intermediate intensity lesion is seen on T1W (a) and T2W imaging (b). It occupies the anterior skull base centrally crossing the midline and demonstrates grey matter immediately adjacent to the lesion (arrow, a) and a CSF cleft (arrow, b) indicative of an extra-axial location. The lesion demonstrates homogenous intense enhancement following contrast administration (short arrow, c). The coronal bone window CT (d) demonstrates hyperostosis of the underlying anterior cranial fossa (long arrows), typical for a meningioma. Despite the marked mass effect on the olfactory sulcus and intimate association with the olfactory groove (long arrow, c), the patient only complained of a mild olfactory disturbance

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