Abscess, cellulitis The examination is limited by motion artifact and the patient's difficulty tolerating the exam.Within the subcutaneous tissues of antecubital fossa is a thick-walled, peripherally enhancing fluid collection measuring approximately 3.2 x 2.9 x 3.6 cm in the greatest transverse, AP, and craniocaudal dimensions. A second smaller collection is seen slightly lateral to the dominant mass measuring approximately 1.8 x 0.7 cm. This may represent a second smaller abscess or extension of the larger one. There is extensive surrounding subcutaneous edema and overlying skin thickening. There is mild underlying fascial edema and muscle enhancement reflecting additional inflammatory changes.The bone marrow signal is normal and there is no osseous erosion.The ulnar nerve, radial nerve, and median nerve appear grossly unremarkable.
Thick-walled peripherally enhancing fluid collection within the antecubital fossa representing abscess which is further detailed above.