Last revised by Daniel J Bell on 17 Dec 2019

Leptomeninges (singular: leptomeninx) comprise both the arachnoid mater and the pia mater. This term is usually used in association with the term pachymeninx, a synonymous term for the dura mater.

History and etymology

Leptomeninx comes from the Ancient Greek 'leptos' meaning thin and 'meninx' meaning membrane.

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Cases and figures

  • Figure 1: meninges
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