Spontaneous Mammary Adenocarcinoma in a Twelve-week-old Female Sprague-Dawley Rat
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منابع مشابه
Spontaneous Mammary Adenocarcinoma in a Twelve-week-old Female Sprague-Dawley Rat
Spontaneous mammary adenocarcinoma was observed in a 12-week-old female SD rat. A movable mass in the right cervical region was found at 11 weeks of age, and the rat was sacrificed the following week. The mass was located in the vicinity of the right salivary gland and measured 38 mm × 26 mm × 16 mm in gross size. It was a firm whitish mass, with a cut surface that was also whitish in appearanc...
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Spontaneous thymoma was found in the left lobe of the thymus of a male 10-week-old Sprague-Dawley (SD) rat. Microscopically, the thymic mass showed a sheet of dark area with multiple pale foci. The dark area mainly consisted of densely compacted small lymphoid cells with sporadic large epithelioid cells and mitotic figures. The epithelioid cells and mitotic figures were more frequent than those...
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Spontaneous basal cell carcinoma (BCC) is very rare in rats, with an incidence rate of only 0.14% reported in aged animals. A spontaneous BCC occurred in a 7-week-old Sprague-Dawley rat housed in a specific-pathogen-free animal facility. The tumor was a single, well-delineated reddish-brown subcutaneous mass measuring 2 x 2 cm and located in the left inguinal region. Microscopically, the tumor ...
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متن کاملChoroid plexus carcinoma with neuronal and glial differentiation in a 7-week-old male Sprague-Dawley rat.
We describe a case of choroid plexus carcinoma arising in the cerebrum of a 7-week-old male Sprague-Dawley rat. The tumor mass occupied the right lateral ventricle of the cerebrum. Histological analyses revealed that the epithelial tumor cells had proliferated in tubular, cribriform, papillary and solid growth patterns in the vicinity of the choroid plexus, with slight invasion into the cerebru...
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ژورنال
عنوان ژورنال: Journal of Toxicologic Pathology
سال: 2012
ISSN: 0914-9198,1881-915X
DOI: 10.1293/tox.25.221