Recessus des Kniegelenks

MRI

characteristics of cysts and “cyst-like” lesions in and around the knee: what the radiologist needs to know. Knee recesses. The sagittal (a) fat saturated proton density weighted image shows fluid in the subpopliteal-subgastrocnemius (white arrow) and posterior femoral recess (black arrow). Findings of ACL reconstruction are also visible (in dotted line). The axial (b) fat saturated proton density weighted image shows a fluid distended posterior capsular recess which is located posteriorly to the PCL. The axial (c) fat saturated proton density weighted image shows fluid in the subpopliteal recess (white arrow). A Baker cyst (with asterisk) and geodes (black arrows) at both tibial condyles are also shown. The axial (d) fat saturated proton density weighted image shows the central recesses (white arrows) with fluid extending medially and laterally deep to the patellar retinacula

MRI

characteristics of cysts and “cyst-like” lesions in and around the knee: what the radiologist needs to know. Knee recesses. The sagittal (a) fat saturated proton density weighted image shows fluid in the suprahoffatic recess (white arrow), in the infrahoffatic recess (black arrow) and in the suprapatellar pouch (grey arrow). A small fluid intensity lesion in the distal femoral metaphysis (in dotted line) represents a small enchondroma. The coronal (b) fat saturated proton density weighted image shows the parameniscal recesses (white arrows) with fluid above and below the lateral meniscal margins at the level of the body