Signal of the coccygeal lesion:
- T1: intermediate signal intensity with small foci of hyperintensity (intratumoral hemorrhage or a mucus pool).
- T2: very high signal
- T1 C+ (Gd): heterogeneous enhancement with a honeycomb appearance.
- Diffusibility restricted in DWI and low signal in ADC.
Confirm two nodules of the same intensity of mass on the right, near the gluteus maximus muscle. The gluteal muscles are not infiltrated while the last coccygeal vertebrae show osteolysis.