MRI study reveals a 4.0 cm mass in the soft tissues underlying the inferior aspect of the right 11th rib.
The spherical lesion is fairly homgenous and of intermediate signal, however there is a higher signal center. This suggests central cystic and fatty degeneration.
There are no further lesions in the imaged chest and upper abdomen.
Annotated image shows the fascicular sign: coronal T2, fat-saturated sequence reveals small, circular, low-signal intensity area surrounded by a background of mild hyperintensity.