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鼠类自发性多原发肿瘤少见,作者常规剖检Wistar系实验空白对照组大鼠370只,发现有自发性肿瘤鼠31只(肿瘤发病率为8.38％),其中多原发肿瘤者2只,均为雌性。特报告如下: 1.A鼠,18月龄,体重320g. 大体解剖:在16月龄时发现右后肢内侧皮下包块,椭圆形,活动度大,与周围组织无粘连,2个月后明显消瘦,被毛松乱,右后肢瘫痪,肌张力消失。将动物处死后,剖检右后肢内侧的肿瘤,见肿块有完整包膜,大小4 cm×3 cm×2.5 cm,重25g,切面灰白色,其间有不同方向排列的白色条纹。腹腔检查时又发现腹腔内有一肿块,前与回肠、后与脊柱相连,分离肿块,发现其起源肠系膜,腹腔
Rodent spontaneous multiple primary tumor rare, the authors routine dissection Wistar experimental blank control group of 370 rats found 31 spontaneous tumor mice (tumor incidence was 8.38%), including multiple primary tumor were 2 , Are females. Special report is as follows: 1.A mouse, 18 months old, weighing 320g. General anatomy: at 16 months of age found the medial side of the right hind subcutaneous mass, oval, large mobility, no adhesions with the surrounding tissue, 2 months after the obvious Weight loss, hair loose, paralyzed right hind limb, muscle tension disappear. After the animals were sacrificed, the tumors in the right hindlimb were dissected, and the tumor was covered with a complete capsule of size 4 cm × 3 cm × 2.5 cm with a weight of 25 g. The section was gray-white with white stripes arranged in different directions. Abdominal examination was found intraperitoneal lumps, before and ileum, after the spine connected to separate the mass and found its origin of mesentery, abdominal cavity