neoplasm
N |
• up to 7 months of age, young heterozygotes exhibit no sign of retinoblastoma or any other abnormality relative to wild-type mice
(J:2498)
• no retinoblastomas are macroscopically detected in chimeras ranging in age up to 11 months
(J:2498)
• no pre-neoplastic lesions are detected in the medulla of the adrenal gland of heterozygous mutant mice
(J:20542)
|
• after 3-5 months, heterozygotes develop large (4-5 mm) tumors in the intermediate lobe of the pituitary gland
• such tumors are relatively benign and do not infiltrate into brain tissue; the wild-type allele of Rb1 is lost in the vast majority of cases
|
nervous system
• after 3-5 months, heterozygotes develop large (4-5 mm) tumors in the intermediate lobe of the pituitary gland
• such tumors are relatively benign and do not infiltrate into brain tissue; the wild-type allele of Rb1 is lost in the vast majority of cases
|
• at E11.5, heterozygotes exhibit only occasional apoptotic cells in the spinal ganglia, identified by their pyknotic and fragmented nuclei and dense eosinophilic cytoplasm
|
endocrine/exocrine glands
• after 3-5 months, heterozygotes develop large (4-5 mm) tumors in the intermediate lobe of the pituitary gland
• such tumors are relatively benign and do not infiltrate into brain tissue; the wild-type allele of Rb1 is lost in the vast majority of cases
|