What does cortical thickening of the tibia mean?

The appearance consists of diffuse, mature cortical thickening. Severe venous insufficiency or venous ectasia can result in tibial or fibular cortical thickening secondary to mature periosteal bone formation (,,,Fig 27). Venous stasis is probably the most common cause of diffuse cortical thickening in the tibia.

Is tibia cortical bone?

In the human tibia, we have shown that (1) the cortical structure is highly adapted to compression stresses throughout the bone, with a smoothly variable adaptation to bending and torsion which reaches maximum effectiveness at the mid diaphysis (2), and (2) in long-distance runners, the pQCT-assessed cortical mass and …

What is cortical thickening of bone?

Radiographically, the cortical thickening involves the diaphyses of long bones, with sparing of the epiphysis [12]. The medullary canals may be narrowed. On MR images, the intramedullary and bone marrow edema are characteristic of Ribbing disease [12, 21].

What is a cortical based lesion?

Consequently, cortical lesions were defined as those lesions appearing hyperintense on DIR images compared to surrounding normal-appearing gray matter, entirely or partly located in the cortical gray matter and occupying at least three voxels.

What does cortical mean in medical terms?

cortex
Cortical: Having to do with the cortex, the outer layer of an organ.

Is cortical thickening bad?

Recent advances in neuroimaging enable us to assess early age-related brain changes. Of particular interest is cortical thickness, which reflects the width of the cortical gray matter,9 and has been proposed to be a reliable marker of brain atrophy.

Which bones are cortical?

Cortical bone forms the external layer of all bones but is found predominantly in the appendicular skeleton, particularly in diaphysis of long bones. Cancellous bone is found mainly in the axial skeleton, located between the cortices of smaller flat and short bones such as scapulae, vertebrae, and pelvis.

What is cortical bone made of?

Cortical bone is dense and solid and surrounds the marrow space, whereas trabecular bone is composed of a honeycomb-like network of trabecular plates and rods interspersed in the bone marrow compartment. Both cortical and trabecular bone are composed of osteons. Cortical osteons are called Haversian systems.

What does cortical bone do?

Cortical bone is the dense outer surface of bone that forms a protective layer around the internal cavity. This type of bone also known as compact bone makes up nearly 80% of skeletal mass and is imperative to body structure and weight bearing because of its high resistance to bending and torsion.

What is cortical?

1 : of, relating to, or consisting of cortex. 2 : involving or resulting from the action or condition of the cerebral cortex.

What are the cortical areas?

The cortex can be divided into three functionally distinct areas: sensory, motor, and associative. The main sensory areas of the brain include the primary auditory cortex, primary somatosensory cortex, and primary visual cortex. In general, the two hemispheres receive information from the opposite side of the body.

Is cortical thinning good or bad?

These findings suggest that cortical thinning in the right hemisphere produces disturbances in arousal, attention, and memory for social stimuli, which in turn may increase the risk of developing depressive illness.

How are cortical lesions of the tibia diagnosed?

However, the number of diseases that involve the tibial cortex is great, and it can be difficult to arrive at a limited differential diagnosis from radiographic findings. Categorization of lesions of the tibia into those that cause cortical destruction and those that cause cor- tical proliferation can help narrow the broad differential diagnosis. Le-

How is cortical thickness of the tibial diaphysis related to age?

This study aimed to evaluate the age- and sex-related characteristics in cortical thickness of the tibial diaphysis between non-obese healthy young and elderly subjects as reference data. The study investigated 31 young subjects (12 men and 19 women; mean age, 25 ± 8 years) and 54 elderly subjects (29 men and 25 women; mean age, 70 ± 6 years).

What are the Enti-ties to the tibial cortex?

Recognize the enti- ties that are highly characteristic of or specific to the tibial cortex. Discuss the entities that are cortically destructive and those that are proliferative and the consequent differential diagnosis. Scott M. Levine, MD●Robert E. Lambiase, MD●Catherine N. Petchprapa, MD

Are there any diseases that involve the tibia?

Petchprapa, MD Lesions that involve the cortex of the tibia are fairly common in radiol- ogy practice. However, the number of diseases that involve the tibial cortex is great, and it can be difficult to arrive at a limited differential diagnosis from radiographic findings.