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Figure 7. The transverse axial short tau inversion recovery sequence (at 3 mm above Figure 5) shows the pulp chambers (F) of the teeth to have high signal (white and light grey) owing to a relatively high water content. There is also high signal around the unerupted wisdom teeth owing to high water content in the dental follicles (P), formed during development of the tooth crown. There is high signal (white) at the back of the tongue (T) owing to saliva being retained in the oropharynx. High signal is also seen in the cerebrospinal fluid, in slow flowing vessels in the neck and in the parotid glands.
