User contributions
21 August 2013
File:IPLab13WT8.jpg
This is a high-power photomicrograph of "tubule" formation within the blastema (arrows).
File:IPLab13WT7.jpg
This is another medium-power photomicrograph of the tumor. It demonstrates again the two cell types making up this neoplasm. The glands or "tubules" within the blastema are better developed in this section (arrows).
File:IPLab13WT6.jpg
This medium-power photomicrograph of tumor shows again the two cell types making up this neoplasm. There are regions within the blastema where the cells form glands or "tubules" (arrows).
File:IPLab13WT5.jpg
This low-power photomicrograph of tumor shows the two cell types making up this neoplasm. The basophilic cellular component termed "blastema" (1) can be distinguished from less cellular eosinophilic areas with fibroblast-like cells (2).
File:IPLab13WT4.jpg
This lowest-power view shows the tumor itself; no tissue is present that can be readily identified as normal kidney. There does appear to be a capsule surrounding the tumor. Eosinophilic bands are seen surrounding basophilic islands of cells. These cor...
File:IPLab13WT3.jpg
This is a gross photograph of lung from this case demonstrating the metastatic tumor nodule (arrow).
File:IPLab13WT2.jpg
This is a closer view of the kidney with Wilms' tumor (arrows).
File:IPLab13WT1.jpg
This is a gross photograph of a bladder (1) to which are attached a normal kidney (2) and a kidney with Wilms' tumor (3). A large mass extends from the superior pole of the affected kidney. The renal capsule can be seen extending around this tumor.
IPLab:Lab 13:Hyaline Membrane Disease
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab13Hyaline1.jpg|This is a gross photograph of lung demonstrating hyaline membrane disease and atelectasis. File..."
File:IPLab13Hyaline9.jpg
This higher-power photomicrograph shows more clearly the hyaline membranes (arrows) and the congestion in the interstitium.
File:IPLab13Hyaline8.jpg
This medium-power photomicrograph shows the pink acellular homogeneous material lining the alveoli which comprises the hyaline membranes (arrows). The interstitium shows congestion, as in previous sections.
File:IPLab13Hyaline7.jpg
This high-power photomicrograph shows an airway with adjacent lung tissue. Some alveoli have hyaline membranes (arrows). There is severe congestion of the interstitium throughout this section.
File:IPLab13Hyaline6.jpg
This is a medium-power photomicrograph showing a large bronchus with cartilage. Interstitial congestion with numerous red cells is apparent. Even at this magnification hyaline membranes (arrows) can be seen lining the alveoli.
File:IPLab13Hyaline5.jpg
This low-power photomicrograph of lung demonstrates hypercellular pulmonary interstitium and small air spaces (as compared to adult lungs).
File:IPLab13Hyaline4.jpg
This high-power photomicrograph of liver shows more clearly the immature blood cell precursors (arrows) which represent extramedullary hematopoiesis of the liver. The liver is a normal site of fetal hematopoiesis and, for this stage of gestation, extra...
File:IPLab13Hyaline3.jpg
This is a low-power photomicrograph of liver which contains dark blue-stained cells in the hepatic sinusoids. These are immature blood cell precursors and this represents extramedullary hematopoiesis of the liver.
File:IPLab13Hyaline2.jpg
This is a low-power photomicrograph of a triangular-shaped section of lung (1) and an oblong section of liver (2). The lack of open air spaces in this neonatal lung indicates its immaturity.
File:IPLab13Hyaline1.jpg
This is a gross photograph of lung demonstrating hyaline membrane disease and atelectasis.
IPLab:Lab 13:Biliary Atresia
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab13BiliaryAtresia1.jpg|This is a low power photomicrograph of a section of liver. Even at this low magnification..."
File:IPLab13BiliaryAtresia5.jpg
This is a medium-power photomicrograph of liver section stained with a trichrome stain to demonstrate the portal fibrosis. The fibrous connective tissue (collagen) stains blue.
File:IPLab13BiliaryAtresia4.jpg
This is a high-power photomicrograph of fibrotic portal region with several bile ducts that contain inspissated bile (arrows). Adjacent hepatocytes also contain bile pigments.
File:IPLab13BiliaryAtresia3.jpg
This high-power photomicrograph of fibrotic portal region demonstrates proliferation of the bile ducts (arrows).
File:IPLab13BiliaryAtresia2.jpg
This medium-power photomicrograph of liver shows an area of portal fibrosis and bile duct proliferation (arrows). Adjacent to this fibrotic portal region, hepatocytes are seen separated by dilated sinusoids. Throughout this section are found accumulati...
File:IPLab13BiliaryAtresia1.jpg
This is a low power photomicrograph of a section of liver. Even at this low magnification, areas of fibrosis can be appreciated.
IPLab:Lab 13:Myelomeningocele
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IPLab:Lab 13:Myelomeningocele
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab13Myelomeningocele1.jpg|This is a gross photograph of the fetus at autopsy. Note the defect in the lower lumbar..."
File:IPLab13Myelomeningocele7.jpg
This high-power photomicrograph of the spinal cord within the vertebral column shows the hemorrhage (arrows) in this region.
File:IPLab13Myelomeningocele6.jpg
This is a high-power photomicrograph of the spinal cord (arrow) immediately beneath the area of hemorrhage.
File:IPLab13Myelomeningocele5.jpg
This is a higher-power photomicrograph of one of the vertebral bodies from this case. The defect (arrows) in the vertebral body is seen more clearly. The spinal cord is disrupted and there are areas of hemorrhage in this region.
File:IPLab13Myelomeningocele4.jpg
This is a low-power photomicrograph of one of the vertebral bodies from this case. In this section there are defects (arrows) in the vertebral body but the skin can be seen over the open vertebral canal.
File:IPLab13Myelomeningocele3.jpg
This is a closer view of the previous gross photograph showing a normal lumbar vertebra from this case on the left. Once again, note the defect (arrow) in the vertebral body on the right due to failure of the vertebral column to close properly.
File:IPLab13Myelomeningocele2.jpg
This gross photograph shows consecutive lumbar vertebra from this case. Note the defect (arrows) in the two vertebral bodies on the right. This defect was caused by failure of the vertebral column to properly close.
File:IPLab13Myelomeningocele1.jpg
This is a gross photograph of the fetus at autopsy. Note the defect in the lower lumbar region of the spinal column (arrow). The myelomeningocele can be seen protruding from this defect.
IPLab:Lab 12:COPD
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab12COPD1.jpg|This gross photograph of lung taken at autopsy demonstrates the degree of emphysematous change (arr..."
File:IPLab12COPD5.jpg
This gross photograph of the heart taken at autopsy demonstrates right ventricular hypertrophy and dilatation (arrows).
File:IPLab12COPD4.jpg
This higher-power photomicrograph of the lung shows more clearly the enlarged air spaces indicative of emphysematous change.
File:IPLab12COPD3.jpg
This low-power photomicrograph of the lung demonstrates the enlarged air spaces indicative of emphysematous change.
File:IPLab12COPD2.jpg
This is a higher-power view of the lung showing the emphysematous change.
File:IPLab12COPD1.jpg
This gross photograph of lung taken at autopsy demonstrates the degree of emphysematous change (arrows). Also note that the rest of the lung is consolidated, indicating a pneumonia.
IPLab:Lab 12:Burns
Created page with "== Images == <gallery heights="250px" widths="250px"> File:IPLab12Burns1.jpg|This photograph taken at autopsy demonstrates the severity of the surface burns on this patient. ..."
File:IPLab12Burns13.jpg
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File:IPLab12Burns13.jpg
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File:IPLab12Burns12.jpg
This photomicrograph of the trachea shows sloughing of the tracheal epithelium and the black carbonaceous material contained therein (1). This degree of tracheal epithelial damage is indicative of severe inhalation injury. The tracheal cartilage rings ...
File:IPLab12Burns11.jpg
This closer view of the lung shows the black carbonaceous material in the trachea as well as in the main stem bronchi.
File:IPLab12Burns10.jpg
This photograph of the lung again shows the black carbonaceous material in the trachea as well as in the main stem bronchi. The lungs are mildly congested and hyperemic. The patient lived for less than 8 hours after the burn injury so there was not eno...
File:IPLab12Burns9.jpg
This photograph demonstrates the black carbonaceous material in the trachea.
File:IPLab12Burns8.jpg
This medium-power photomicrograph of the burned skin shows the mild damage to the superficial layers of the epidermis.
File:IPLab12Burns7.jpg
This photomicrograph of the burned skin depicts an area of first degree burn. Note that there are no blisters and no damage to the dermis. There is mild damage to the superficial epidermis and some hyperemia (arrow).
File:IPLab12Burns6.jpg
This high-power photomicrograph of the burned skin shows the blister and the thrombosed vessels in the dermis.
File:IPLab12Burns5.jpg
This medium-power photomicrograph of the burned skin demonstrates blister formation. The vessels in the dermis are congested (arrows).