Add to ORKGSpontaneously occurring proliferative lesions of the male accessory sex glands are infrequent in various strains of rats. In rodents, the ampullary glands are embedded in the prostate. Although 2 spontaneous cases of atypical hyperplastic lesions at the ampullary gland were previously described in Wistar rats, adenocarcinoma and/or adenoma in this gland have not been reported. This study describes adenocarcinomas in the bilateral ampullary glands in a 52-week-old intact male Sprague-Dawley rat housed as part of a control group in a toxicological experiment. At necropsy, the body weight (644.4 g) and the weight of the prostate with ampullary gland (2.75 g) were similar to others of the same control group, and it had a normal gross appearance...
Mean percentage survival at 104 weeks was 58 % for males and 59 % for females. A total of 1857 neopl...
Spontaneous neoplasm rates were determined for control Fischer 344 (F344) rats and B6C3Fl mice from ...
Spontaneous tumors of the prostate gland in the house mouse (Mus musculus) have rarely been describe...
Spontaneously occurring proliferative lesions of the male accessory sex glands are infrequent in var...
Abstract. We reviewed 359 neoplasms of the preputial and clitoral glands of F344 rats to classify th...
Abstract: Spontaneous renal tubule tumors (RTTs), with a distinctive morphological phenotype, were p...
veloped benign tumors of the endocrine glands and/or their target organs. As the animals aged beyond...
The low background incidence of tumors in rodents from subchronic toxicity studies makes it difficul...
Many strains of rats develop spontaneous or drug-induced adrenal medullary prolifera-tive lesions. H...
Because sampling of the paired lobes (ventral, dorsal, lateral, and anterior) of the mouse prostate ...
In a 24-months study, the spontaneous tumour spectrum of the Hsd:Sprague-Dawley stock was examined. ...
Historical data are presented for neoplasms and related proliferative lesions from 1,170 Sprague-Daw...
Abstract. The origin of chemically induced male accessory sex gland tumors was studied in Lobund-Wis...
The NTP has a long history of using Fischer rats and has compiled a large database of incidences of ...
Abstract: Spontaneous mammary adenocarcinoma was observed in a 12-week-old female SD rat. A movable ...
Mean percentage survival at 104 weeks was 58 % for males and 59 % for females. A total of 1857 neopl...
Spontaneous neoplasm rates were determined for control Fischer 344 (F344) rats and B6C3Fl mice from ...
Spontaneous tumors of the prostate gland in the house mouse (Mus musculus) have rarely been describe...
Spontaneously occurring proliferative lesions of the male accessory sex glands are infrequent in var...
Abstract. We reviewed 359 neoplasms of the preputial and clitoral glands of F344 rats to classify th...
Abstract: Spontaneous renal tubule tumors (RTTs), with a distinctive morphological phenotype, were p...
veloped benign tumors of the endocrine glands and/or their target organs. As the animals aged beyond...
The low background incidence of tumors in rodents from subchronic toxicity studies makes it difficul...
Many strains of rats develop spontaneous or drug-induced adrenal medullary prolifera-tive lesions. H...
Because sampling of the paired lobes (ventral, dorsal, lateral, and anterior) of the mouse prostate ...
In a 24-months study, the spontaneous tumour spectrum of the Hsd:Sprague-Dawley stock was examined. ...
Historical data are presented for neoplasms and related proliferative lesions from 1,170 Sprague-Daw...
Abstract. The origin of chemically induced male accessory sex gland tumors was studied in Lobund-Wis...
The NTP has a long history of using Fischer rats and has compiled a large database of incidences of ...
Abstract: Spontaneous mammary adenocarcinoma was observed in a 12-week-old female SD rat. A movable ...
Mean percentage survival at 104 weeks was 58 % for males and 59 % for females. A total of 1857 neopl...
Spontaneous neoplasm rates were determined for control Fischer 344 (F344) rats and B6C3Fl mice from ...
Spontaneous tumors of the prostate gland in the house mouse (Mus musculus) have rarely been describe...