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The Gordon R. Hennigar Pathology Museum Collection

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Liver: Multiple Adenomas
Liver: Multiple Adenomas Multiple liver cell adenomas . COMMENT(#49 & #50): Good examples of multiple adenomas; areas of infarction/hemorrhage often found (remember microscopic characteristics).
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Liver: Multiple Infarction, Ischemic Heart Disease
Liver: Multiple Infarction, Ischemic Heart Disease Multiple infarction of liver--ischemic heart disease. Comment: Multifocal areas of infarction are present--easiest to see are white, sharply demarcated, with irregular borders.
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Liver: Metastatic Choriocarcinoma
Liver: Metastatic Choriocarcinoma Metastatic choriocarcinoma; multifaceted pigment stones in gallbladder. COMMENT (#60-64): Metastatic tumors in liver characteristically have central necrosis (umbilicated appearance through the capsule) due to outgrowth of blood/nutrient supply--other than this, variations in appearance may reflect origin of tumor i.e., the melanoma is represented by both pigmented and non-pigmented (amelanotic) metastases; choriocarcinoma typically is hemorrhagic. The cholelithiasis in #64 is unrelated to metastatic tumor)
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Liver: Metastatic Choriocarcinoma
Liver: Metastatic Choriocarcinoma Metastatic choriocarcinoma to liver from testis. COMMENT (#60-64): Metastatic tumors in liver characteristically have central necrosis (umbilicated appearance through the capsule) due to outgrowth of blood/nutrient supply--other than this, variations in appearance may reflect origin of tumor i.e., the melanoma is represented by both pigmented and non-pigmented (amelanotic) metastases; choriocarcinoma typically is hemorrhagic. The cholelithiasis in #64 is unrelated to metastatic tumor)
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Liver: Metastatic Breast Carcinoma
Liver: Metastatic Breast Carcinoma Metastatic breast carcinoma
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Liver: Necrosis
Liver: Necrosis Massive necrosis of the liver, possibly to halothane.
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Liver: Centrilobular Necrosis
Liver: Centrilobular Necrosis Massive centrilobular necrosis secondary to heart disease
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Liver: Alcoholic Fatty Liver
Liver: Alcoholic Fatty Liver Marked fatty change of liver (alcoholism). Comment on L-10 through L-12: Livers are pale, enlarged with ""rolled"" edges--one specimen (L-12) has been stained with Oil Red O to demonstrate the fat present in the tissue.
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Liver: Metastatic Malignant Melanoma
Liver: Metastatic Malignant Melanoma Malignant melanoma metastatic to liver and spleen (no number). COMMENT (#60-64): Metastatic tumors in liver characteristically have central necrosis (umbilicated appearance through the capsule) due to outgrowth of blood/nutrient supply--other than this, variations in appearance may reflect origin of tumor i.e., the melanoma is represented by both pigmented and non-pigmented (amelanotic) metastases; choriocarcinoma typically is hemorrhagic. The cholelithiasis in #64 is unrelated to metastatic tumor)
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Liver: Laennec's Cirrhosis
Liver: Laennec's Cirrhosis Laennec's cirrhosis. COMMENT: Specimens 13-22 are all examples of cirrhosis associated with alcoholism (Laennec's, portal, nutritional, alcoholic)--note that the specimens have a micronodular pattern in general with a generally uniform appearance to the nodules; however, note that some of the livers have nodules of up to about 1 cm. (see note below) and that there may be some variability in nodule size within one specimen. Intervening parenchyma is composed of fibrous septae. Also note that the remaining nodular liver parenchyma is quite pale or yellow = fatty change associated with continued alcohol abuse. Picture corresponding microscopic picture in your mind's eye of fatty change and cirrhosis (remember the definition of cirrhosis). Specimen #22 indicates that microscopically there is necrosis of hepatocytes with an inflammatory response = this is not evident grossly in this specimen. In this series, the small firm livers are good examples of end stage nutritional or alcoholic cirrhosis. NOTE: Although Robbins says that micronodular cirrhosis has nodules of up to 1 cm. in diameter, Dr. Hennigar's measurement of 3mm. and below is more characteristic.
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Liver: Laennec's Cirrhosis
Liver: Laennec's Cirrhosis Laennec's cirrhosis. COMMENT: Specimens 13-22 are all examples of cirrhosis associated with alcoholism (Laennec's, portal, nutritional, alcoholic)--note that the specimens have a micronodular pattern in general with a generally uniform appearance to the nodules; however, note that some of the livers have nodules of up to about 1 cm. (see note below) and that there may be some variability in nodule size within one specimen. Intervening parenchyma is composed of fibrous septae. Also note that the remaining nodular liver parenchyma is quite pale or yellow = fatty change associated with continued alcohol abuse. Picture corresponding microscopic picture in your mind's eye of fatty change and cirrhosis (remember the definition of cirrhosis). Specimen #22 indicates that microscopically there is necrosis of hepatocytes with an inflammatory response = this is not evident grossly in this specimen. In this series, the small firm livers are good examples of end stage nutritional or alcoholic cirrhosis. NOTE: Although Robbins says that micronodular cirrhosis has nodules of up to 1 cm. in diameter, Dr. Hennigar's measurement of 3mm. and below is more characteristic.
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Liver: Laennec's Cirrhosis
Liver: Laennec's Cirrhosis Laennec's cirrhosis. COMMENT: Specimens 13-22 are all examples of cirrhosis associated with alcoholism (Laennec's, portal, nutritional, alcoholic)--note that the specimens have a micronodular pattern in general with a generally uniform appearance to the nodules; however, note that some of the livers have nodules of up to about 1 cm. (see note below) and that there may be some variability in nodule size within one specimen. Intervening parenchyma is composed of fibrous septae. Also note that the remaining nodular liver parenchyma is quite pale or yellow = fatty change associated with continued alcohol abuse. Picture corresponding microscopic picture in your mind's eye of fatty change and cirrhosis (remember the definition of cirrhosis). Specimen #22 indicates that microscopically there is necrosis of hepatocytes with an inflammatory response = this is not evident grossly in this specimen. In this series, the small firm livers are good examples of end stage nutritional or alcoholic cirrhosis. NOTE: Although Robbins says that micronodular cirrhosis has nodules of up to 1 cm. in diameter, Dr. Hennigar's measurement of 3mm. and below is more characteristic.
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Liver: Laennec's Cirrhosis
Liver: Laennec's Cirrhosis Laennec's cirrhosis and fatty liver. COMMENT: Specimens 13-22 are all examples of cirrhosis associated with alcoholism (Laennec's, portal, nutritional, alcoholic)--note that the specimens have a micronodular pattern in general with a generally uniform appearance to the nodules; however, note that some of the livers have nodules of up to about 1 cm. (see note below) and that there may be some variability in nodule size within one specimen. Intervening parenchyma is composed of fibrous septae. Also note that the remaining nodular liver parenchyma is quite pale or yellow = fatty change associated with continued alcohol abuse. Picture corresponding microscopic picture in your mind's eye of fatty change and cirrhosis (remember the definition of cirrhosis). Specimen #22 indicates that microscopically there is necrosis of hepatocytes with an inflammatory response = this is not evident grossly in this specimen. In this series, the small firm livers are good examples of end stage nutritional or alcoholic cirrhosis. NOTE: Although Robbins says that micronodular cirrhosis has nodules of up to 1 cm. in diameter, Dr. Hennigar's measurement of 3mm. and below is more characteristic.
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Liver: Laennec's Cirrhosis
Liver: Laennec's Cirrhosis Laennec's cirrhosis . COMMENT: Specimens 13-22 are all examples of cirrhosis associated with alcoholism (Laennec's, portal, nutritional, alcoholic)--note that the specimens have a micronodular pattern in general with a generally uniform appearance to the nodules; however, note that some of the livers have nodules of up to about 1 cm. (see note below) and that there may be some variability in nodule size within one specimen. Intervening parenchyma is composed of fibrous septae. Also note that the remaining nodular liver parenchyma is quite pale or yellow = fatty change associated with continued alcohol abuse. Picture corresponding microscopic picture in your mind's eye of fatty change and cirrhosis (remember the definition of cirrhosis). Specimen #22 indicates that microscopically there is necrosis of hepatocytes with an inflammatory response = this is not evident grossly in this specimen. In this series, the small firm livers are good examples of end stage nutritional or alcoholic cirrhosis. NOTE: Although Robbins says that micronodular cirrhosis has nodules of up to 1 cm. in diameter, Dr. Hennigar's measurement of 3mm. and below is more characteristic.
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Liver: Laennec's Cirrhosis
Liver: Laennec's Cirrhosis Laennec's cirrhosis (severe). COMMENT: Specimens 13-22 are all examples of cirrhosis associated with alcoholism (Laennec's, portal, nutritional, alcoholic)--note that the specimens have a micronodular pattern in general with a generally uniform appearance to the nodules; however, note that some of the livers have nodules of up to about 1 cm. (see note below) and that there may be some variability in nodule size within one specimen. Intervening parenchyma is composed of fibrous septae. Also note that the remaining nodular liver parenchyma is quite pale or yellow = fatty change associated with continued alcohol abuse. Picture corresponding microscopic picture in your mind's eye of fatty change and cirrhosis (remember the definition of cirrhosis). Specimen #22 indicates that microscopically there is necrosis of hepatocytes with an inflammatory response = this is not evident grossly in this specimen. In this series, the small firm livers are good examples of end stage nutritional or alcoholic cirrhosis. NOTE: Although Robbins says that micronodular cirrhosis has nodules of up to 1 cm. in diameter, Dr. Hennigar's measurement of 3mm. and below is more characteristic.
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Liver: Laceration
Liver: Laceration Laceration of liver
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Liver: Hepatitis
Liver: Hepatitis INH hepatitis with massive necrosis. COMMENT: Looks just like the massive necrosis of fulminant viral hepatitis (decrease in liver size, shrunken capsule, vascular structures close together, purple red, soft, flabby).
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Liver: Hepatocellular Carcinoma, Laennec's Cirrhosis
Liver: Hepatocellular Carcinoma, Laennec's Cirrhosis Hepatocellular carcinoma in Laennec's cirrhosis. COMMENT: Although more likely to occur in postnecrotic cirrhosis, can see this in Laennec's cirrhosis (mass in upper right = tumor)
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Liver: Hepatoblastoma
Liver: Hepatoblastoma Hepatoblastoma (mixed type) . COMMENT: Rare malignant tumor of liver in infancy and childhood with histologic picture consisting of cells resembling fetal liver cells, undifferentiated cells or occasionally admixed with other connective tissue elements. Prognosis usually better than hepatocellular carcinoma
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Liver: Hamartoma
Liver: Hamartoma Hamartoma of liver. COMMENT: Only a small rim of normal liver is present at the left
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