Fig. 15
From: Incidental findings in and around the prostate on prostate MRI: a pictorial review
Parachordoma a Axial T1-weighted, (b) axial T2-weighted and (c) sagittal T2-weighted images show a lobulated mass within the left gluteus maximus (white arrow). The prostate is labelled by the red arrow. The lesion is iso- to mildly hyperintense to muscle on T1 and hyperintense to muscle on T2 and shows internal fluid–fluid levels in keeping with haemorrhage and cystic change. The lesion did not show diffusion restriction. Surgical resection confirmed myoepithelial carcinoma or parachordoma