Magnetic resonance imaging of soft-tissue tumors of the extremities: A practical approach

Figure 4 Baker cysts. A: Sagittal proton-density B: Axial gradient-echo images. The left knee shows a well-defined cystic lesion (arrowhead) connected to the knee joint by way of a narrow neck between the semimembranosus tendon (arrow) and the medial head of the gastrocnemius muscle (gm). Note that the Baker cyst contains debris (small arrows in A).