What does fibrous cortical defect mean?

What does fibrous cortical defect mean?

Fibrous cortical defects (FCD) are benign bony lesions and are a type of fibroxanthoma, histologically identical to the larger non-ossifying fibroma (NOF).

Is a fibrous cortical defect a tumor?

To begin with, the fibrous cortical defect is a benign fibrous tumour occurring, in the cortex of the metaphysis, only in the long bones of children and young adolescents. The term “fibrous cortical defects” has been given, as these lesions are composed of fibrous tissue.

What is the most common location for a fibrous cortical defect?

The lesions are usually found in the metaphyseal areas, mainly in bones constituting the knee joint [1,2]. Figure 2. Cortical fibrous defect versus non-ossifying fibroma.

How is fibrous cortical defect treated?

In the pediatric population, casting usually is the most appropriate treatment after pathologic fracture to avoid injuring the physes during surgery. FCD may heal spontaneously following fracture. If, after casting and union of the fracture, the lesion does not regress, curettage and grafting are indicated.

What is a cortical defect of kidney?

Renal (kidney) cortical necrosis is death of the tissue in the outer part of the kidney (cortex) that results from blockage of the small arteries that supply blood to the cortex and that causes acute kidney injury. Usually the cause is a major, catastrophic disorder that decreases blood pressure.

Is cortical a defect?

Posttraumatic cortical defect of bone is a rare entity which occurs in a maturing skeleton following green stick or torus fracture. Most of the cases are asymptomatic and they are detected incidentally on radiograph. These lesions usually require no treatment.

What causes cortical scarring of kidney?

Scarring can occur because of high blood pressure, infection, glomerulonephritis, trauma, drug induced injury, blockage of the ureter, blockage of the blood vessel and chemical injury. You can also be born with this abnormality. It is not specific for any particular disease.

What percentage of the kidney is cortical?

Eighty-five percent of nephrons are cortical nephrons, deep in the renal cortex; the remaining 15 percent are juxtamedullary nephrons, which lie in the renal cortex close to the renal medulla.

What is a cortical irregularity?

Avulsive cortical irregularity (ACI) is a benign reactive fibro-osseous proliferation due to chronic traction of the adductor magnus aponeurosis or the medial head of the gastrocnemius to their attachment. ACI is a self-limited condition that heals with skeletal maturity.