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Fig. 7 | Insights into Imaging

Fig. 7

From: Masses of developmental and genetic origin affecting the paediatric craniofacial skeleton

Fig. 7

Intraosseous dermoid cyst (DC) in a 17-year-old male presenting as a gradually enlarging right supraorbital swelling since three years. a Cystic lesion in the right frontal bone (arrow) with non-lipomatous contents on axial T2. On T1 (b) and fat-saturated contrast-enhanced T1 (c), the lesion appears hypointense and displays intracystic serpiginous hyperintense areas which correspond to haemorrhage, high protein content or saponification (arrows). d DWI reveals high signal on the b = 1000 image (asterisk, upper image part) and low signal on the ADC map (asterisk, lower image part, ADC = 0.6 × 10−3 mm2/s), compatible with restricted diffusion and characteristic of an epidermoid cyst

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