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• 01:32, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7LipSCC6.jpg (This is a high power photomicrograph of the well-differentiated squamous cell carcinoma. Note the intracytoplasmic keratinization which gives the cells a glassy appearance. The focal accumulations of keratinized cells are called keratin pearls (arrows).)
• 01:32, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7LipSCC5.jpg (This is a higher-power photomicrograph of infiltrating squamous cell carcinoma and inflammatory cells.)
• 01:32, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7LipSCC4.jpg (This is a higher-power photomicrograph of the well-differentiated squamous cell carcinoma and the inflammatory cell infiltration.)
• 01:32, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7LipSCC3.jpg (This photomicrograph shows a large area of ulceration (arrow) with underlying congestion and hemorrhage. The area of ulceration is adjacent to an area of tumor infiltration.)
• 01:31, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7LipSCC2.jpg (This is a low-power photomicrograph of squamous cell carcinoma of the lip. Note focal ulceration (1) and tumor infiltration at the vermilion border (2).)
• 01:31, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7LipSCC1.jpg (This is a pre-op photograph of this patient with an ulcerated lesion on his lip (arrow). Also note that the lip is somewhat thickened. The area for surgical excision is delineated by black marker.)
• 01:28, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Fibroadenoma7.jpg (This is a higher magnification of fibroadenoma showing irregularly shaped ducts lined by two layers of cells as previously described.)
• 01:28, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Fibroadenoma6.jpg (This is a high magnification of the fibroadenoma showing the dense stroma of the tumor surrounding the irregularly shaped duct. The ducts are lined by two cell layers, one of cuboidal, two columnar cells (inner layer) and an outer layer of flattened ce...)
• 01:28, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Fibroadenoma5.jpg (This is a higher-power photomicrograph of fibroadenoma showing ducts embedded in connective tissue.)
• 01:27, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Fibroadenoma4.jpg (This photomicrograph shows the compressed connective tissue (arrow) between two nodules of dense fibrous tissue and ducts.)
• 01:27, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Fibroadenoma3.jpg (This is a higher magnification of the fibroadenoma showing the dense stroma of the tumor surrounding the irregularly shaped ducts. The adjacent fibrofatty tissue containing breast ducts and lobules has been compressed by the tumor.)
• 01:27, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Fibroadenoma2.jpg (This is a higher magnification of one of the three nodules. At this power, the nodule seems to be composed of a solid parenchyma with small glandular spaces. The adjacent breast parenchyma consists mostly of fat.)
• 01:26, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Fibroadenoma1.jpg (This low-power photomicrograph of the surgical specimen demonstrates three ovoid, well-circumscribed nodules surrounded by fibroadipose tissue.)
• 01:23, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Adenoma6.jpg (This high-power photomicrograph demonstrates the relatively normal cellular morphology of this follicular adenoma.)
• 01:23, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Adenoma5.jpg (This is a photomicrograph of an adenoma. Note that the follicular architecture is well developed and more or less uniform throughout this section.)
• 01:23, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Adenoma4.jpg (This photomicrograph demonstrates the densely packed follicular pattern in the adenoma (left) and the larger colloid-filled follicles of the normal thyroid (right). An area of compressed thyroid is present adjacent to the adenoma (arrows).)
• 01:22, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Adenoma3.jpg (This is another higher-power photomicrograph of the adenoma (left) and the adjacent thyroid tissue (right). Note the compression of the adjacent normal thyroid and the difference in morphology between the adenoma and the thyroid.)
• 01:22, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Adenoma2.jpg (This is a higher-power view of the border between the tumor mass and the adjacent thyroid tissue. Note that the mass has compressed the adjacent normal thyroid tissue (arrow). Also note the different morphology between the adenoma (very cellular, dense...)
• 01:22, 21 August 2013 Seung Park (talk | contribs) uploaded File:IPLab7Adenoma1.jpg (This is a low-power photomicrograph of a nodule found in the thyroid of this case. Note that the mass is well-circumscribed and there is a sharp line of demarcation between the mass and the adjacent thyroid tissue (arrows).)
• 21:58, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection10.jpg (This high-power photomicrograph demonstrates the cellular infiltrate within the interstitium and cells within the renal tubules.)
• 21:58, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection9.jpg (This is a high-power photomicrograph of cells infiltrating the wall of the blood vessel.)
• 21:58, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection8.jpg (This high-power photomicrograph demonstrates the cellular infiltrate within the interstitium (1) and in the wall of the blood vessel (2).)
• 21:57, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection7.jpg (This high-power photomicrograph demonstrates the cellular infiltrate within the interstitium and in the wall of the blood vessel on the left.)
• 21:57, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection6.jpg (This is a higher-power photomicrograph demonstrating the cellular infiltrate within the interstitium. There is some degeneration (coagulative necrosis) of tubules and glomeruli.)
• 21:57, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection5.jpg (This is a higher-power photomicrograph demonstrating the cellular infiltrate within the interstitium and around the small blood vessel in the center of the image.)
• 21:57, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection4.jpg (This is a higher-power photomicrograph demonstrating the cellular infiltrates within this kidney section. Note that in addition to the diffuse cellularity, the focal accumulations of cells appear to be focused around blood vessels.)
• 21:56, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection3.jpg (This is a higher-power photomicrograph demonstrating the cellular infiltrates within this kidney section.)
• 21:56, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection2.jpg (This is a low-power photomicrograph of the kidney that was removed from this patient. Even at this low power you can appreciate the focal accumulations of cells within this section and the diffuse cellular infiltrate (blue dots) throughout the kidney p...)
• 21:56, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6AcuteRejection1.jpg (This is a gross photograph of a kidney with acute rejection from an autopsy case. Note that the kidney is swollen (edema and inflammation) and there are areas of hemorrhage throughout the kidney.)
• 21:51, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection12.jpg (Photomicrograph from another region of previous image. Note the cellular infiltrate around a small blood vessel (right) and neutrophils within renal tubules (arrow).)
• 21:51, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection11.jpg (This is a higher-power photomicrograph of kidney from the previous image demonstrating the cellular infiltrate which is comprised of lymphocytes, macrophages, plasma cells and a few neutrophils.)
• 21:50, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection10.jpg (This is a high-power photomicrograph of a kidney from another case of chronic transplant rejection. In this case there is extensive damage to the kidney due to the chronic rejection (loss of tubules and glomerular lesions). In addition, this kidney was...)
• 21:50, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection9.jpg (This is a high-power photomicrograph of a damaged glomerulus. Note the loss of normal capillary structure, the mesangial expansion and the infiltration of large mononuclear cells.)
• 21:50, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection8.jpg (This is a high-power photomicrograph of renal cortex with cellular infiltrate and few remaining renal tubules. The cellular infiltrate comprises macrophages, activated (large) lymphocytes and a few neutrophils and plasma cells.)
• 21:49, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection7.jpg (This is a photomicrograph of a glomerulus with a mild cellular infiltrate (left) and a small damaged glomerulus (right). There is extensive interstitial fibrosis (1), loss of renal tubules, and the remaining tubules contain protein (2) indicating sever...)
• 21:49, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection6.jpg (This is a photomicrograph of rejected kidney with a focus of cellular infiltrate (left) and a small artery with neointimal proliferation and stenosis (arrow).)
• 21:49, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection5.jpg (This high-power photomicrograph of glomeruli from this kidney demonstrates congestion (1), increased cellularity of glomeruli with mesangial expansion, and a glomerulus that is almost completely obliterated or sclerosed (2).)
• 21:49, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection4.jpg (This is another area of renal cortex similar to the previous image. Note the fibrosis (1) and loss of renal tubules throughout this section. Also note the focus of inflammatory cells (2) indicating that despite the chromic nature of this lesion, there ...)
• 21:48, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection3.jpg (This is a photomicrograph of kidney with a focal area of hemorrhage around a small blood vessel (left) and congestion of the glomeruli. Note that there is a marked loss of renal tubules throughout this section with replacement by fibrous connective tis...)
• 21:48, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection2.jpg (This is a higher-power photomicrograph of kidney containing a section of blood vessel that demonstrates a marked neointimal proliferative response (1). In this case the lumen of the artery is obliterated. Also note the cellular infiltrate in the inters...)
• 21:48, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6ChronicRejection1.jpg (This is a low-power photomicrograph of the kidney from this case of chronic transplant rejection. Note the focal areas of hemorrhage and inflammatory cell infiltrate in this section.)
• 21:43, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6MM4.jpg (This is a photograph of the vertebral column from this patient at autopsy. Notice the collapsed vertebra (1). There are multiple variably-sized white nodules (2) within the bone marrow. These are accumulations of malignant plasma cells in this case of ...)
• 21:43, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6MM3.jpg (This high-power photomicrograph demonstrates the cells that make up this tissue. These cells resemble plasma cells and are the malignant cell of multiple myeloma.)
• 21:42, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6MM2.jpg (This higher-power photomicrograph shows the junction between an amorphous hyaline-appearing area (amyloid) on the right and cellular areas (plasmacytoid cells) on the left.)
• 21:42, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6MM1.jpg (This is a low-power photomicrograph of the mediastinal mass. The mass is encapsulated and contains cellular areas (blue) and areas of pale red material.)
• 21:36, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6Amyloid11.jpg (This photomicrograph of the tongue demonstrates extensive amyloid deposits (1) separating the skeletal muscle fibers of the tongue. In many cases the amyloid encircles the muscle fibers (2) and these muscle fibers are atrophied.)
• 21:36, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6Amyloid10.jpg (This photomicrograph of kidney demonstrates the amyloid deposits (arrows) within glomeruli.)
• 21:36, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6Amyloid9.jpg (This is a gross photograph of kidney from this case. Note the pale yellow material within the cortex (arrows). This is indicative of amyloid within the cortex and the glomeruli. Also note that there are multiple red spots in the cortex. These represent...)
• 21:35, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6Amyloid8.jpg (This is a photomicrograph of Congo-red-stained liver tissue viewed with partially polarized light. Although not well demonstrated in this image, Congo-red-stained amyloid viewed through polarized light should give off a classic “apple green” birefr...)
• 21:35, 20 August 2013 Seung Park (talk | contribs) uploaded File:IPLab6Amyloid7.jpg (This is a high-power view of liver tissue stained with Congo red. The orange amyloid material (arrows) is seen clearly between liver parenchymal cells.)

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