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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-9-30
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pubmed:abstractText |
An adult female canebrake rattlesnake (Crotalus horridus atricaudatus) at Zoo Atlanta (Atlanta, Georgia, USA) had a subcutaneous mass on the left lateral abdomen. Microscopically, the tumor contained a pleomorphic population of cells with abundant intracytoplasmic brown to gold nonrefractile pigment (chromatophores), large stellate cells resembling neurons, and small stellate cells whose cytoplasmic processes formed a fibrillar matrix. The pigment stained black with the Fontana-Masson technique and was positive with the periodic acid-Schiff technique (prior to and after diastase treatment). Neuron-specific enolase was detected in the large stellate cells using an immunohistochemical staining technique. In addition, glial fibrillary acidic and S-100 proteins were detected in the chromatophores with immunohistochemical staining. The smaller stellate cells were strongly S-100 positive. Ultrastructurally, chromatophores contained intracytoplasmic structures composed of concentric lamellar membranes bordered by a triple-layer outer membrane. The morphology of these structures was compatible with pterinosomes. Three fluorescent pigments were isolated from the neoplasm by one-dimensional chromatography and characterized by spectrophotometry and spectrofluorometry.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1042-7260
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
28
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
198-203
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:9279411-Animals,
pubmed-meshheading:9279411-Chromatography, Paper,
pubmed-meshheading:9279411-Chromatophores,
pubmed-meshheading:9279411-Crotalus,
pubmed-meshheading:9279411-Female,
pubmed-meshheading:9279411-Histocytochemistry,
pubmed-meshheading:9279411-Immunohistochemistry,
pubmed-meshheading:9279411-Melanoma,
pubmed-meshheading:9279411-Microscopy, Electron,
pubmed-meshheading:9279411-Pteridines,
pubmed-meshheading:9279411-Skin Neoplasms,
pubmed-meshheading:9279411-Spectrometry, Fluorescence,
pubmed-meshheading:9279411-Spectrophotometry
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pubmed:year |
1997
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pubmed:articleTitle |
Malignant chromatophoroma in a canebrake rattlesnake (Crotalus horridus atricaudatus).
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pubmed:affiliation |
Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens 30602, USA.
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pubmed:publicationType |
Journal Article,
Case Reports
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