User contributions for Peter Anderson

20 August 2013

• 09:5609:56, 20 August 2013 diff hist +203 N File:IPLab5Hemochromatosis10.jpg This is a histologic section of pancreas from this case. It is difficult to appreciate at this magnification, but there is brown pigment in the pancreatic acinar cells. Note the islets of Langerhans (1). current
• 09:5609:56, 20 August 2013 diff hist +95 N File:IPLab5Hemochromatosis9.jpg This is a gross picture of pancreas from this case. Note the brown discoloration of the tissue. current
• 09:5509:55, 20 August 2013 diff hist +189 N File:IPLab5Hemochromatosis8.jpg This higher-power view of liver stained with Prussian blue demonstrates the marked accumulation of iron within the parenchymal cells (1) and in the Kupffer cells in the periportal area (2). current
• 09:5509:55, 20 August 2013 diff hist +136 N File:IPLab5Hemochromatosis7.jpg This is a low-power view of liver section stained with Prussian blue. Prussian blue reacts with iron in the tissue to give a blue color. current
• 09:5409:54, 20 August 2013 diff hist +186 N File:IPLab5Hemochromatosis6.jpg This trichrome stain of liver section demonstrates the increased fibrous connective tissue in this liver. Note that the liver nodules (1) are surrounded by fibrous connective tissue (2). current
• 09:5409:54, 20 August 2013 diff hist +130 N File:IPLab5Hemochromatosis5.jpg This higher-power photomicrograph demonstrates the increased fibrosis in the periportal area (1) and the pigment accumulation (2). current
• 09:5309:53, 20 August 2013 diff hist +140 N File:IPLab5Hemochromatosis4.jpg This higher-power view of liver from this case demonstrates the nodules and the brown/black pigment within liver parenchymal cells (arrows). current
• 09:5309:53, 20 August 2013 diff hist +102 N File:IPLab5Hemochromatosis3.jpg This is a low-power micrograph of liver from this patient. Note the nodularity of the tissue (arrows). current
• 09:5309:53, 20 August 2013 diff hist +204 N File:IPLab5Hemochromatosis2.jpg This is a gross photograph of a cut section of liver from this case of hemochromatosis. Note that the liver is dark brown. Although hard to appreciate in a photograph, the tissue is also firm (cirrhotic). current
• 09:5209:52, 20 August 2013 diff hist +152 N File:IPLab5Hemochromatosis1.jpg This is a gross photograph of liver (1) and pancreas (2) from this case of hemochromatosis. Note that both of these organs have a dark brown coloration. current

19 August 2013

• 13:2913:29, 19 August 2013 diff hist +1,224 IPLab:Lab 5:α1 Antitrypsin Deficiency No edit summary
• 13:2813:28, 19 August 2013 diff hist +225 N File:IPLab5Antitrypsin12.jpg This is a high-power photomicrograph of liver stained with periodic-acid Schiff's (PAS) stain. This demonstrates the PAS-positive granules of defective alpha 1-antitrypsin that accumulate in the Golgi of hepatocytes (arrows). current
• 13:2813:28, 19 August 2013 diff hist +165 N File:IPLab5Antitrypsin11.jpg This is a higher-power photomicrograph of a trichrome-stained section of liver. This section demonstrates the fibrosis (blue material) and the fatty change (arrows). current
• 13:2713:27, 19 August 2013 diff hist +143 N File:IPLab5Antitrypsin10.jpg This is a low-power photomicrograph of a trichrome-stained section of liver. There is bridging fibrosis (blue material) between portal regions. current
• 13:2713:27, 19 August 2013 diff hist +191 N File:IPLab5Antitrypsin9.jpg This is a low-power photomicrograph of an H&E-stained section of liver. There are increased numbers of inflammatory cells in the periportal region (arrow) and the central vein areas are pale. current
• 13:2613:26, 19 August 2013 diff hist +131 N File:IPLab5Antitrypsin8.jpg This is a closer view of the cut section of liver from this case. There is a definite micronodular pattern to the liver parenchyma. current
• 13:2613:26, 19 August 2013 diff hist +168 N File:IPLab5Antitrypsin7.jpg This is a gross photograph of the cut section of liver from this case. In this view the liver looks smaller than normal and there is a definite micronodular appearance. current
• 13:2513:25, 19 August 2013 diff hist +194 N File:IPLab5Antitrypsin6.jpg This is a gross photograph of the liver from this case. The capsule is somewhat thickened and the surface is slightly roughened, though it is difficult to appreciate the nodularity of the liver. current
• 13:2413:24, 19 August 2013 diff hist +104 File:IPLab5Antitrypsin4.jpg No edit summary current
• 13:2313:23, 19 August 2013 diff hist +1 IPLab:Lab 5:α1 Antitrypsin Deficiency No edit summary
• 13:2113:21, 19 August 2013 diff hist +64 IPLab:Lab 5:α1 Antitrypsin Deficiency No edit summary
• 13:1913:19, 19 August 2013 diff hist −38 IPLab:Lab 5:α1 Antitrypsin Deficiency No edit summary
• 13:1313:13, 19 August 2013 diff hist +115 N File:IPLab5Antitrypsin3.jpg This is a gross photograph of the bronchi and lungs. Note the hemorrhage in the bronchi and in the lung parenchyma. current
• 13:1113:11, 19 August 2013 diff hist 0 IPLab:Lab 5:α1 Antitrypsin Deficiency No edit summary
• 13:1013:10, 19 August 2013 diff hist +1,440 N IPLab:Lab 5:α1 Antitrypsin Deficiency Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab5AntiTrypsin1.jpg|This is a gross photograph of the lungs from this case. The rough friable material on the sur..."
• 13:0913:09, 19 August 2013 diff hist +155 N File:IPLab5Antitrypsin5.jpg This is a low-power photomicrograph from an area of the lung without significant hemorrhage. The enlarged, emphysematous air spaces are easily appreciated. current
• 13:0713:07, 19 August 2013 diff hist +115 N File:IPLab5Antitrypsin4.jpg This is a gross photograph of the bronchi and lungs. Note the hemorrhage in the bronchi and in the lung parenchyma.
• 13:0713:07, 19 August 2013 diff hist +213 N File:IPLab5Antitrypsin2.jpg This is a gross photograph of the cut sections of lung from this case. The lung parenchyma is markedly hemorrhagic and consolidated. Again the hemorrhage makes it difficult to appreciate the emphysematous changes. current
• 13:0613:06, 19 August 2013 diff hist +303 N File:IPLab5Antitrypsin1.jpg This is a gross photograph of the lungs from this case. The rough friable material on the surface of the lung (arrows) is fibrinous exudate and fibrous tissue. This reaction on the surface of the lung is due to the recent surgery. The emphysematous cha... current
• 12:5512:55, 19 August 2013 diff hist +1,239 IPLab:Lab 5:Polycystic Kidney Disease No edit summary
• 12:5412:54, 19 August 2013 diff hist +110 N File:IPLab5PolycysticKidney11.jpg This is a higher-power photomicrograph of liver cyst. These cystic structures are lined by biliary epithelium. current
• 12:5412:54, 19 August 2013 diff hist +158 N File:IPLab5PolycysticKidney10.jpg This is another photomicrograph of liver demonstrating the histologic appearance of these cysts. These cystic structures are associated with the biliary tree. current
• 12:5312:53, 19 August 2013 diff hist +84 N File:IPLab5PolycysticKidney9.jpg This photomicrograph of liver demonstrates the histologic appearance of these cysts. current
• 12:5312:53, 19 August 2013 diff hist +124 N File:IPLab5PolycysticKidney8.jpg This is a gross photograph of the liver from this patient. Multiple cysts can be seen on the surface of this liver (arrows). current
• 12:5212:52, 19 August 2013 diff hist +83 N File:IPLab5PolycysticKidney7.jpg This high-power photomicrograph shows abnormal glomeruli (arrows) and some tubules. current
• 12:5212:52, 19 August 2013 diff hist +251 N File:IPLab5PolycysticKidney6.jpg This is a higher-power photomicrograph of polycystic kidney showing the edge of a large cyst (1). In this section there are numerous tubules and dilated collecting ducts (2) that are filled with the same red proteinaceous material as the larger cysts. current
• 12:5112:51, 19 August 2013 diff hist +202 N File:IPLab5PolycysticKidney5.jpg This is another low-power photomicrograph of an H&E-stained section from this polycystic kidney. Again note the large cystic structures (arrows)and the fibrous connective tissue throughout this section. current
• 12:5112:51, 19 August 2013 diff hist +219 N File:IPLab5PolycysticKidney4.jpg This is a low-power photomicrograph of an H&E-stained section from this polycystic kidney. Note the large cystic structures (1), the few residual glomeruli (2), and the fibrous connective tissue throughout this section. current
• 12:4912:49, 19 August 2013 diff hist +164 N File:IPLab5PolycysticKidney3.jpg This is a gross photograph of a cut section from one of these polycystic kidneys. Note that the renal parenchyma is almost completely replaced by cystic structures. current
• 12:4412:44, 19 August 2013 diff hist −34 IPLab:Lab 5:Polycystic Kidney Disease No edit summary
• 12:4112:41, 19 August 2013 diff hist +983 N IPLab:Lab 5:Polycystic Kidney Disease Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab5PolycysticKidney1.jpg|This is a gross photograph of the kidneys from this case. Note that both kidneys contain..."
• 12:4012:40, 19 August 2013 diff hist +119 N File:IPLab5PolycysticKidney2.jpg This is a gross photograph of the kidneys from this case. Note that both kidneys contain multiple large cysts (arrows). current
• 12:3912:39, 19 August 2013 diff hist +119 N File:IPLab5PolycysticKidney1.jpg This is a gross photograph of the kidneys from this case. Note that both kidneys contain multiple large cysts (arrows). current
• 12:3012:30, 19 August 2013 diff hist 0 IPLab:Lab 5:Neurofibromatosis No edit summary
• 12:2312:23, 19 August 2013 diff hist −1 IPLab:Lab 5:Neurofibromatosis No edit summary
• 12:2212:22, 19 August 2013 diff hist +1,305 N IPLab:Lab 5:Neurofibromatosis Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab5Neurofibromatosis1.jpg|This photograph, taken at autopsy, demonstrates the distribution of neurofibromas on th..."
• 12:2212:22, 19 August 2013 diff hist +70 N File:IPLab5Neurofibromatosis8.jpg This is a high-power photomicrograph of the cells in the neurofibroma. current
• 12:2112:21, 19 August 2013 diff hist +143 N File:IPLab5Neurofibromatosis7.jpg This higher-power photomicrograph of the neurofibroma shows more clearly the elongated cells (primarily Schwann cells) that make up this tumor. current
• 12:2112:21, 19 August 2013 diff hist +135 N File:IPLab5Neurofibromatosis6.jpg This is a higher-power photomicrograph of the neurofibroma demonstrating the loose pattern of elongated cells making up the tumor mass. current
• 12:2012:20, 19 August 2013 diff hist +91 N File:IPLab5Neurofibromatosis5.jpg This is a higher-power photomicrograph of the neurofibroma (1) with the overlying skin (2). current