What causes intramuscular edema?

What causes intramuscular edema?

Intramuscular edema can be seen in association with autoimmune conditions, such as polymyositis and dermatomyositis; mild injuries; infectious myositis; subacute denervation; compartment syndrome; and rhabdomyolysis; it can also be seen as a transient, physiologic finding during and briefly following muscle exercise.

What is diffuse muscle edema?

In a diffuse pattern of muscle edema, multiple muscles and muscle groups are involved bilaterally, typically with the entire muscle affected. In a focal pattern of edema, the abnormality is confined to one muscle or muscle group or to a contiguous area involving multiple adjacent muscles.

What is denervation edema?

Lack of subsequent trauma and diffuse edema evident throughout the BFLH, but absent in overlying subcutaneous tissues, indicated subacute denervation edema,1,3 which commonly presents 2 to 4 weeks after denervation1 and may be due to water shifting to extracellular spaces2 as a result of decreased viability of local …

What is Perifascial edema?

Perifascial edema was the most common finding of plantar fasciitis, and it was remarkable in those cases with acute fascial rup- ture. MR imaging reliably delineated the anatomy of the PA and may allow precise localization and definition of the extent of involvement in disease processes.

How do you treat muscle edema?

Hold the swollen part of your body above the level of your heart several times a day. In some cases, elevating the affected body part while you sleep may be helpful. Massage. Stroking the affected area toward your heart using firm, but not painful, pressure may help move the excess fluid out of that area.

Is edema and swelling the same?

What is edema? Edema is swelling that is caused by fluid trapped in your body’s tissues. Edema happens most often in the feet, ankles, and legs, but can affect other parts of the body, such as the face, hands, and abdomen.

Can you see muscle inflammation on MRI?

MRI accurately documents the extent and intensity of the muscle abnormalities. The inflammation is usually symmetric and classically involves the proximal muscle groups in both polymyositis and dermatomyositis, but muscle involvement can also be patchy and asymmetric (Fig. 1).

Where are the calcifications found in tumoral calcinosis?

The soft-tissue lesions of tumoral calcinosis are typically lobulated, well-demarcated calcifications that are most often distributed along the extensor surfaces of large joints.

Are there any other diseases similar to calcinosis?

There are many conditions with similar appearances, including the calcinosis of chronic renal failure, calcinosis universalis, calcinosis circumscripta, calcific tendonitis, synovial osteochondromatosis, synovial sarcoma, osteosarcoma, myositis ossificans, tophaceous gout, and calcific myonecrosis.

Is the periarticular calcinosis of the soft tissues rare?

Massive periarticular calcinosis of the soft tissues is a unique but not rare radiographic finding. On the contrary, tumoral calcinosis is a rare familial disease.

What do calcium levels show on a MRI?

Fluid calcium levels may be seen representing communication between the necrotic muscle and the tendon sheath. Associated reactive periostitis of the underlying bone may be present. MRI shows a well-circumscribed mass. Describe signal characteristics include 1: The condition was initially described by Gallie and Thompson in 1960.