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In anatomy, the costophrenic angles are the places where the diaphragm (-phrenic) meets the ribs (costo-). Each costophrenic angle can normally be seen as on chest x-ray as a sharply-pointed, downward indentation (dark) between each hemi-diaphragm (white) and the adjacent chest wall (white). A small portion of each lung normally reaches into ...
In radiology, the deep sulcus sign on a supine chest radiograph is an indirect indicator of a pneumothorax. [ 1 ] [ 2 ] In a supine film, it appears as a deep, lucent, ipsilateral costophrenic angle [ 3 ] within the nondependent portions of the pleural space as opposed to the apex (of the lung ) when the patient is upright.
In neuroanatomy, a sulcus (Latin: "furrow"; pl.: sulci) is a shallow depression or groove in the cerebral cortex. One or more sulci surround a gyrus (pl. gyri), a ridge on the surface of the cortex, creating the characteristic folded appearance of the brain in humans and most other mammals. The larger sulci are also called fissures.
In biological morphology and anatomy, a sulcus (pl.: sulci) is a furrow or fissure (Latin fissura, pl.: fissurae). It may be a groove, natural division, deep furrow, elongated cleft, or tear in the surface of a limb or an organ, most notably on the surface of the brain , but also in the lungs , certain muscles (including the heart ), as well as ...
There needs to be at least 75 mL of pleural fluid in order to blunt the costophrenic angle on the lateral chest radiograph and 200 mL of pleural fluid in order to blunt the costophrenic angle on the posteroanterior chest radiograph. On a lateral decubitus, amounts as small as 50ml of fluid are possible.
The cardiophrenic angle is the angle between the heart and the diaphragm, as seen on imaging (most commonly X-ray).There are two cardiophrenic angles, however the one on the right is obscured by the cardiohepatic angle (the angle between the heart and liver).
Sulcal SAH is the most common form of intracranial bleed caused by vasculitis. On CT scans, sulcal SAH is seen as hyperdensity within the cerebral sulcus, while on MRI, it is seen as hyperintensity on FLAIR sequence, and hypointensity on GRE/SWI sequence. DSA is important in making the diagnosis of vasculitis or vasculopathy. [3]
The costal margin is the medial margin formed by the cartilages of the seventh to tenth ribs. It attaches to the body and xiphoid process of the sternum. [2]The thoracic diaphragm attaches to the costal margin.