Imaging Features of Superficial and Deep Fibromatoses in the Adult Population
Figure 4
Multicentric extraabdominal fibromatosis of the right ankle: a 22-year-old male with ankle pain with prolonged standing. (a) AP radiograph of the right ankle demonstrates soft tissues masses (arrows) and mature periosteal reaction (curved arrow) of the fibula adjacent to the proximal lesion. (b) Coronal T1-weighted (TR420/TE10) sequence reveals predominantly intermediate signal lesions (arrows) of the subcutaneous tissues of the lateral ankle. (c) Coronal T2-weighted (TR4730.91/TE70) fat saturation image shows heterogeneous lesions (arrows) with moderate to marked enhancement on the (d) coronal T1-weighted (TR420/TE10) postcontrast fat suppression image. Low-signal-intensity bands (small arrowheads) of mature collagenized tissue within this desmoid tumor are best appreciated on the T2FS sequence. Photograph (e) of resected gross specimen demonstrates infiltrative borders (arrow) and a coarsely trabeculated surface.
