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Chondroid lipoma is an uncommon soft tissue fatty tumor that can develop in deeper or superficial tissues. It often manifests as a painless mass. [3] The subcutis, superficial muscular fascia, or skeletal muscles of the limbs and limb girdles, trunk, head, and neck are where the majority of lesions are located. [4]
The articular capsule of the knee joint is the wide and lax joint capsule of the knee. It is thin in front and at the side, and contains the patella, ligaments, menisci, and bursae of the knee. [1] The capsule consists of an inner synovial membrane, and an outer fibrous membrane separated by fatty deposits anteriorly and posteriorly. [2]
A lipoma is a benign tumor made of fat tissue. [1] They are generally soft to the touch, movable, and painless. [1] They usually occur just under the skin, but occasionally may be deeper. [1] Most are less than 5 cm (2.0 in) in size. [2] Common locations include upper back, shoulders, and abdomen. [4] It is possible to have several lipomas. [3]
A Baker's cyst, also known as a popliteal cyst, is a type of fluid collection behind the knee. [4] Often there are no symptoms. [2] If symptoms do occur these may include swelling and pain behind the knee, or knee stiffness. [1] If the cyst breaks open, pain may significantly increase with swelling of the calf. [1]
The cockade sign is a radiological feature associated with intraosseous lipoma, a rare benign tumor of the bone composed primarily of mature adipose tissue. [1] [2] This sign describes the characteristic appearance of a central calcification or ossification surrounded by radiolucent fatty tissue on imaging, resembling a bullseye or cockade.
MLS tumors are located in deep-seated soft tissues of the thighs (65–80% of cases), lower legs (10–15% of cases), retroperitoneum (8% of cases), and arms (5% of cases). In about one-third of cases, these tumors metastasize to other soft tissue sites (e.g. retroperitoneum, thorax, or other extremity), skeletal bone, and/or lung.
Owing to the great stress on the patellofemoral joint during resisted knee flexion, the articular cartilage of the patella is among the thickest in the human body. The lower part of the posterior surface has vascular canaliculi filled and is filled by fatty tissue, the infrapatellar fat pad .
Another is between the popliteal artery and the posterior surface of the knee-joint. It receives afferents from the knee-joint, together with those that accompany the genicular arteries. The others lie at the sides of the popliteal vessels, and receive, as efferents, the trunks that accompany the anterior and posterior tibial vessels. [2]
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