Left thigh mass Note that a vitamin E marker was placed along the lateral aspect of the thigh which represents the area of palpable abnormality.There is no evidence of mass or abnormal signal/enhancement in the region of concern. The underlying vastus lateralis muscle is normal in caliber and signal. Within the superior portion of the rectus femoris is an ill-defined area of low T1/T2 signal intensity measuring approximately 2.1 x 1.2 x 4.5 cm in the greatest transaxial and craniocaudal dimensions. There is minimal enhancement and increased T2 signal surrounding this focus within the rectus musculature at this level. There is no discrete mass and no additional enhancing foci.
1. No evidence of mass or abnormal enhancement within the region of interest along the lateral thigh.2. Ill-defined area of low T1/T2 signal within the anterior rectus femoris superiorly. There is a mild amount of enhancement following contrast administration however this is nonspecific in nature and there is no discrete mass lesion. The significance of this finding is unclear and may be unrelated to the current clinical question but may represent an intramuscular hemangioma or other vascular lesion.