Table 1.

Trigeminal and non-trigeminal entities involving Meckel’s cave

Trigeminal	Common - Perineural spread of cancers	Uncommon - Nerve sheath tumours, CIDP - Infection - Herpes
Non-trigeminal	Common - Meningioma - Leptomeningeal metastasis	Uncommon - Vascular - Persistent trigeminal artery, vascular loops - Lymphoma - Sarcoid - Pituitary macroadenoma - Petrous mucocele/cephalocele - Cholesterol granuloma/cholesteatoma/epidermoid - Chondroid lesions/chordoma - ICA aneurysms - Tolosa-Hunt