Alaska's Western Arctic Caribou herd forms aggregations or groups that can stretch for miles. Once back in town the photos were laid out and areas of overlap marked so that no caribou were double-counted. It took 11 of us three days to put the overlap lines on photos, Dau said.
Chest Radiology > Pathology > Pericardial Effusion. Pericardial effusion causes an enlarged heart shadow that is often globular shaped (transverse diameter is disproportionately increased). A fat pad sign, a soft tissue stripe wider than 2mm between the epicardial fat and the anterior mediastinal fat can be seen anterior to the heart on a lateral view.
Pericardial Effusion. When an excess of fluid builds up in the space between the pericardium, it can cause a condition known as pericardial effusion. Rapid fluid accumulation in the pericardium can cause cardiac tamponade, a severe compression of the heart that impairs its ability to function.Cardiac tamponade resulting from a pericardial effusion can be life-threatening and is a medical emergency requiring emergent drainage of the fluid with a catheter.he Pericardium. The pericardium is a thin, two-layered, fluid-filled sac that covers the outer surface of the heart. It shields the heart from infection or malignancy and contains the heart in the chest wall.