Fig. 2

Thirty- five-year-old female patient with adenoid cystic carcinoma of salivary gland centered upon the left maxillary sinus. a Axial T1. b Axial T1 + C. c–g Axial diffusion-weighted imaging with b values: 50, 400, 800, and 1000 respectively, h) ADC map, it displayed low signal intensity in T1, with homogeneous enhancement after IV contrast, while the cystic parts show no enhancement. The lesion elicited high signal intensity in DWI, in both low and high b values (cystic areas are excluded) with corresponding low signal intensity in ADC map (restricted diffusion), ADC value = 0.77 × 10⁻³ s/mm² (low)