Lobule IX

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Cerebellum Protocol Project
Whole Cerebellum	Lobe Definitions	Vermis Definition	Lobule Delineation
Lobules I/II	Lobule III	Lobule IV	Lobule V
Lobule VI	Lobule VIIAf	Lobule VIIAt	Lobule VIIB
Lobule VIIIA	Lobule VIIIB	Lobule IX	Lobule X
Lobules VIIIA-X vermis		Lobules VI-VIIB vermis

Lobule IX

• Location: Lowest portion of the cerebellum in the midsagittal
• Description: First identification can be made in the midsagittal as the region of the cerebellum that seems to be detached from the main branch (as shown in Figure 71) , after initial identification, the axial view is best for further delineation
• Best view(s) for delineation: Axial/ Coronal/ Sagittal
• It is fastest to delineate in the Coronal view because here it is a straight line instead of a circle.

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  Figure 1 : This is a good place to begin delineating lobule IX and the edge of the ear can be seen. This is not allways the case.

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  Figure 2 : Sometimes the lobules 9 in each hemisphere overlap as seen but they are not to be labeled in this manner.

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  Figure 3 : In this scan lobule 9 is especially large.