Bilateral intramuscular pseudotumor in a body-builder.

• Main Authors: L Ardies, T De Beule, T Degroote, F M Vanhoenacker, P K Vanhoenacker
• Format: Article
• Language: English
• Published: Ubiquity Press 2012-03-01
• Series: Journal of the Belgian Society of Radiology
• Online Access: https://www.jbsr.be/articles/202

A 29-year-old bodybuilder presented with a bilateral palpable and painful soft tissue mass in the deltoid region. CT scan showed a bilateral intramuscular mass within the deltoid muscle with intralesional fat (not shown). For further differentiation and exclusion of a fat-containing sarcomatous lesion, MRI of both shoulders was performed. Axial T1-weighted images (WI) of the right shoulder showed a heterogeneous mass lesion containing multiple fatty components (Fig. A, arrows). Axial T1-WI of the left shoulder depicted a mass with a T1-hyperintense fatty component and marked fat-fluid level (Fig. B, arrow). The lesion also demonstrated a fat-fluid level on a sagittal fat suppressed T2-WI (Fig. C, arrow).