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FIG 3. Suprasellar region epidermoid tumor in a 47-year-old woman.
A, Fast-FLAIR imaging (10002/148/1, inversion time of 2200) shows that epidermoid tumor (black arrows) fills the suprasellar and right ambient cisterns; the hyperintensity in the left ambient and interpeduncular cisterns (white arrows) probably is caused by CSF flow artifacts.
B, Echo-planar DW imaging (1600/126 with b value of 1000 s/mm2; field of view, 36 x 24 cm) clearly shows that the tumor (black arrows) is in the suprasellar and right ambient cisterns; the signal in the left ambient and interpeduncular cisterns (white arrow) is greatly attenuated, indicating a fluid nature. Note the susceptibility artifacts (white arrowhead) at the anterior skull base.
C, ADC map shows that the ADC of the tumor (black arrows) is similar to that of surrounding brain tissue; the ADCs of left ambient and interpeduncular cisterns are similar to that of the eyes (white arrows).
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