digestive/alimentary system
• 18 out of 29 (62.1%) male mice develop submandibular gland tumors
• some males develop bilateral tumors
• female mice develop tumors infrequently
• tumor patterns vary from diffuse to variably defined lobules or discrete nests with a fibrous stroma
• many tumor cell nuclei are hyperchromatic
• some lesions are undifferentiated, often with a foci of necrosis
• many tumors are unencapsulated, others have broad expansive margins
• dysplasia occurs only in cells of intercalated ducts
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• dysplasia occurs only in cells of intercalated ducts
• gland has multiple aggregates of abnormal ducts and gland-like structures
• abnormal ducts lined by moderately crowded cells with hyperchromatic nuclei are observed in 30 day old mice
• aggregates of hyperplastic/dysplastic ducts are present at 4-6 months of age
• duct lumen is displaced or reduced in size
• no abnormalities are detected in acinar, striated duct or granular convoluted tubule cells
• parotid and sublingual glands are not affected
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endocrine/exocrine glands
• 18 out of 29 (62.1%) male mice develop submandibular gland tumors
• some males develop bilateral tumors
• female mice develop tumors infrequently
• tumor patterns vary from diffuse to variably defined lobules or discrete nests with a fibrous stroma
• many tumor cell nuclei are hyperchromatic
• some lesions are undifferentiated, often with a foci of necrosis
• many tumors are unencapsulated, others have broad expansive margins
• dysplasia occurs only in cells of intercalated ducts
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• dysplasia occurs only in cells of intercalated ducts
• gland has multiple aggregates of abnormal ducts and gland-like structures
• abnormal ducts lined by moderately crowded cells with hyperchromatic nuclei are observed in 30 day old mice
• aggregates of hyperplastic/dysplastic ducts are present at 4-6 months of age
• duct lumen is displaced or reduced in size
• no abnormalities are detected in acinar, striated duct or granular convoluted tubule cells
• parotid and sublingual glands are not affected
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neoplasm
• 18 out of 29 (62.1%) male mice develop submandibular gland tumors
• some males develop bilateral tumors
• female mice develop tumors infrequently
• tumor patterns vary from diffuse to variably defined lobules or discrete nests with a fibrous stroma
• many tumor cell nuclei are hyperchromatic
• some lesions are undifferentiated, often with a foci of necrosis
• many tumors are unencapsulated, others have broad expansive margins
• dysplasia occurs only in cells of intercalated ducts
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growth/size/body
• 18 out of 29 (62.1%) male mice develop submandibular gland tumors
• some males develop bilateral tumors
• female mice develop tumors infrequently
• tumor patterns vary from diffuse to variably defined lobules or discrete nests with a fibrous stroma
• many tumor cell nuclei are hyperchromatic
• some lesions are undifferentiated, often with a foci of necrosis
• many tumors are unencapsulated, others have broad expansive margins
• dysplasia occurs only in cells of intercalated ducts
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craniofacial
• 18 out of 29 (62.1%) male mice develop submandibular gland tumors
• some males develop bilateral tumors
• female mice develop tumors infrequently
• tumor patterns vary from diffuse to variably defined lobules or discrete nests with a fibrous stroma
• many tumor cell nuclei are hyperchromatic
• some lesions are undifferentiated, often with a foci of necrosis
• many tumors are unencapsulated, others have broad expansive margins
• dysplasia occurs only in cells of intercalated ducts
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