User contributions
19 August 2013
File:IPLab4AtheromatousEmboli5.jpg
This is another view of this vessel with an atherosclerotic embolus. Note the cholesterol clefts (1) and thrombotic material (2) that occlude this artery.
File:IPLab4AtheromatousEmboli4.jpg
This higher-power photomicrograph of one of the arcuate arteries reveals a cholesterol embolus. Note the needle-shaped space (arrow) within the lumen of this artery (arrow) which represents the space occupied by the cholesterol crystal that was dissolv...
File:IPLab4AtheromatousEmboli3.jpg
This is a low-power photomicrograph of kidney tissue. Several blood vessels can be identified at the corticomedullary junction (arrows).
File:IPLab4AtheromatousEmboli2.jpg
This is a closer view of the luminal surface of the aorta from the previous image. The rough, ulcerated surface and the thrombotic material can be easily seen in this image.
File:IPLab4AtheromatousEmboli1.jpg
This is a gross photograph of the aorta from this patient opened lengthwise with the luminal surface visible. Note the rough surface with ulcerations and adherent thrombotic material. There is a mild dilation (aneurysm) at the distal aorta just at the ...
IPLab:Lab 4:Septic Emboli
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab4SepticEmboli1.jpg|This gross photograph of lung demonstrates microabscesses due to septic embolization. Note t..."
File:IPLab4SepticEmboli8.jpg
This is a high-powered photomicrograph of a myocardial abscess stained with a special tissue Gram stain (Brown & Brenn) to illustrate the colonies of bacteria in this myocardial tissue (arrows).
File:IPLab4SepticEmboli7.jpg
This is a higher-power photomicrograph of the abscess within the myocardium illustrating colonies of bacteria as the dark blue-staining material (arrow).
File:IPLab4SepticEmboli6.jpg
This is a low-power photomicrograph of myocardium with septic abscesses (arrows).
File:IPLab4SepticEmboli5.jpg
This is a higher-power photomicrograph of one of these septic abscesses illustrating the colonies of bacteria within necrotic cellular debris (arrows). This is typical of an abscess.
File:IPLab4SepticEmboli4.jpg
This is a higher-power photomicrograph of the focal lesions in the lung produced by the septic emboli. Note these are clearly demarcated from the relatively normal surrounding lung tissue.
File:IPLab4SepticEmboli3.jpg
This low-power photomicrograph shows a section of lung on the left and myocardium on the right. Both pieces of tissue have multiple embolic lesions seen as blue staining areas with massive infiltration of inflammatory cells (arrows).
File:IPLab4SepticEmboli2.jpg
This is a gross photograph of myocardium with multiple embolic lesions scattered throughout the left and right ventricles.
File:IPLab4SepticEmboli1.jpg
This gross photograph of lung demonstrates microabscesses due to septic embolization. Note the small 2 to 3-mm lesions scattered throughout this lung tissue (arrows).
IPLab:Lab 4:Thromboembolus
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab4Thromboembolus1.jpg|This is a gross photograph of a cut section of lung demonstrating thromboemboli in the pul..."
File:IPLab4Thromboembolus10.jpg
This is a gross photograph of the fibrous band between the uterus and adjacent tissues. This fibrous scar tissue is probably left over from a previous surgery or an infection. A loop of bowel herniated through the opening produced by this fibrous band ...
File:IPLab4Thromboembolus9.jpg
This is a gross photograph of an opened abdomen at autopsy demonstrating loops of infarcted bowel (arrow). Vascular occlusion can lead to ischemic necrosis of the bowel. In this case, a section of bowel herniated through a fibrous connective tissue ban...
File:IPLab4Thromboembolus8.jpg
This is a gross photograph of cut section of testis from previous image. The tissue is filled with blood.
File:IPLab4Thromboembolus7.jpg
This is a gross photograph of an infarcted testis. Because of the anatomy of the blood supply to the testis, torsion or the blood vessels often leads to venous occlusion (due to compression of the thin walled veins) but not arterial occlusion. Thus, bl...
File:IPLab4Thromboembolus6.jpg
This is a low-power photomicrograph of the infarcted lung. The tissue is congested and has a very bland appearance due to coagulation necrosis of the lung parenchyma. You can still see the outlines of the alveoli and the cells that make-up the alveoli ...
File:IPLab4Thromboembolus5.jpg
This is a photomicrograph of the wall of the pulmonary artery (1) containing the thromboembolus. In this case the artery wall looks normal. If this was a thrombus instead of a thromboembolus, you would expect to see some damage in the artery wall that ...
File:IPLab4Thromboembolus4.jpg
This is a low-power photomicrograph of lung. A large thrombus is lodged at this branch point in the pulmonary artery. Note the hemorrhage and congestion in the surrounding lung parenchyma.
File:IPLab4Thromboembolus3.jpg
This is a gross photograph of portions of muscle from the legs including sections of leg veins. Note that the leg veins contain thrombus (arrows).
File:IPLab4Thromboembolus2.jpg
This is a gross photograph of the heart with the main pulmonary artery opened. Note the thromboembolus filling the pulmonary artery (arrows).
File:IPLab4Thromboembolus1.jpg
This is a gross photograph of a cut section of lung demonstrating thromboemboli in the pulmonary arteries (arrows).
IPLab:Lab 4:Thrombosis
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab4Thrombosis1.jpg|This is a gross photograph of thrombosed coronary artery (arrows). File:IPLab4Thrombosis2.jpg..."
File:IPLab4Thrombosis10.jpg
This is a high-power photomicrograph of the luminal surface of a re-canalized vessel. Note that the vessel lumen is lined by endothelial cells (arrows).
File:IPLab4Thrombosis9.jpg
This is a higher-power photomicrograph of another region of the vessel wall. The adventitia (1) and the media (2) contain inflammatory cells. The recanalized portion of the vessel (3) is composed of fibrous connective tissue and contains numerous small...
File:IPLab4Thrombosis8.jpg
This is a higher-power photomicrograph of the vessel wall. The adventitia (1) and the media (2) contain inflammatory cells. The recanalized portion of the vessel is composed of fibrous connective tissue and contains numerous small blood vessels. There ...
File:IPLab4Thrombosis7.jpg
In this low-power photomicrograph of another coronary artery from this patient, a mural thrombus has undergone re-organization. The mural thrombus has been invaded by the in-growth of fibroblasts and small blood vessels from the wall of the artery. The...
File:IPLab4Thrombosis6.jpg
This is a higher-power photomicrograph of thrombus attached to the wall of the vessel. Note the early organization with in-growth of fibroblasts and small blood vessels from the wall of the artery (arrows).
File:IPLab4Thrombosis5.jpg
This is a high-power photomicrograph of thrombus attached to the wall of the vessel. There is early organization of the thrombus (arrow).
File:IPLab4Thrombosis4.jpg
This is another high-power photomicrograph of the ruptured fibrous cap (arrows) with hemorrhage (1) into the atherosclerotic plaque. Note the presence of cholesterol crystals.
File:IPLab4Thrombosis3.jpg
This is a higher-power photomicrograph of the ruptured fibrous cap (arrows) with hemorrhage (1) into the atherosclerotic plaque.
File:IPLab4Thrombosis2.jpg
This is a low-power photomicrograph of thrombosed coronary artery. The thrombus (1) completely occludes the vessel. Note the layering of the thrombus. The fibrous cap is ruptured (arrow) and there is hemorrhage into the atherosclerotic plaque. Note the...
File:IPLab4Thrombosis1.jpg
This is a gross photograph of thrombosed coronary artery (arrows).
IPLab:Lab 4:Mural Thrombus
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab4MuralThrombus1.jpg|This is a gross photograph of the heart from this case demonstrating the well-formed thromb..."
File:IPLab4MuralThrombus7.jpg
This high-power photomicrograph of thrombus demonstrates more clearly the components of the layers--the pale regions which contain primarily platelets (degranulated platelets) with some fibrin (1), and the red areas which contain RBCs, some leukocytes,...
File:IPLab4MuralThrombus6.jpg
This is a higher-power photomicrograph of the thrombus. Note the pale regions which contain primarily platelets (degranulated platelets) with some fibrin (1), and the red areas which contain RBCs, some leukocytes, and fibrin(2).
File:IPLab4MuralThrombus5.jpg
This photomicrograph illustrates the layered effect of the thrombus.
File:IPLab4MuralThrombus4.jpg
This is a high-power photomicrograph of the border zone between the thrombus (1) and the endocardium (2). In this region there is less inflammation at the border zone.
File:IPLab4MuralThrombus3.jpg
This higher-power photomicrograph shows the border between the thrombus on the right (1) and the endocardium on the left (2). There is a line of inflammatory cells at this interface (arrow).
File:IPLab4MuralThrombus2.jpg
This is a low-power photomicrograph of the thrombus (1) attached to the myocardium (2).
File:IPLab4MuralThrombus1.jpg
This is a gross photograph of the heart from this case demonstrating the well-formed thrombus (arrow) tightly attached to the myocardium near the apex of the left ventricle.
IPLab:Lab 4:Chronic Passive Congestion
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab4ChronicPassiveCongestion1.jpg|This is a gross photograph of a liver demonstrating chronic passive congestion. ..."
File:IPLab4ChronicPassiveCongestion9.jpg
This is a gross photograph of the cut surface of a liver with chronic passive congestion (left) compared to the cut surface of a nutmeg (right).
File:IPLab4ChronicPassiveCongestion8.jpg
This is a gross photograph of a nutmeg. You can see from the appearance of the cut surface of the nutmeg (arrow) why chronic passive congestion of the liver is sometimes referred to as "nutmeg liver."
File:IPLab4ChronicPassiveCongestion7.jpg
This is a high-power photomicrograph of liver with several macrophages that are distended with a brown pigment (arrow). These resident macrophages (Kupffer cells) are part of the reticuloendothelial system and normally line the sinusoidal spaces in the...
File:IPLab4ChronicPassiveCongestion6.jpg
This is a high-power photomicrograph of the central vein illustrating congestion and some loss of liver parenchymal cells. A mild increase in connective tissue around the central vein is evident in this section.
File:IPLab4ChronicPassiveCongestion5.jpg
This higher-power photomicrograph of the liver lobules shows congestion and red blood cell accumulation in the sinusoidal spaces around the central vein. Note that around the portal triads (arrows) the liver cells are quite normal and there is no evide...