Figure 4.

Rhabdomyosarcoma in different patients. (a) Sagittal T2-weighted image shows a large multicystic vaginal tumour in an infant girl protruding towards the introitus. (b) Sagittal T1-weighted images after gadolinium enhancement showing a lobulated intravesical mass in a 3-year-old girl. (c) Sagittal T2-weighted MRI in a 3-year-old boy shows a very large solid prostatic mass displacing a catheterized bladder superiorly. A fluid-filled balloon catheter is seen in a displaced and compressed bladder. (d) ADC map of the same prostatic tumour shows restricted diffusion, indicating high cellularity (and likely malignancy). In addition to demonstrating the extent of the pelvic primary tumour, it is important that the scanning (all modalities) is sufficient to assess also for locoregional lymphadenopathy.