"The fascial tail appears as a tapering marginal extension(s) of the tumour along the fascial plane. The tail enhances after administration of contrast media. The signal characteristics depend on the tumour (for example, T2 hypointense in the case of desmoid tumour but hyperintense in the case of myxofibrosarcoma)."
"However, the same sign has also been described as the tail sign in soft tissue sarcomas that may arise in the fascia, with the highest frequency in the following 5-13:"