Akkermans J P, van Beusekom W J
Vet Q. 1984 Apr;6(2):90-6. doi: 10.1080/01652176.1984.9693918.
Of a total of 1445 sows, tumors were detected in the uterus of 11 animals and in the cervix/vagina of 1 animal. Tumor-like lesions were detected in the ovary of 56 animals. The incidence of tumors was higher than that mentioned in the literature, possibly because of the relatively high age of the sows (mean parity of 6.8) and the accuracy of investigation. Several tumors would not have been detected during routine slaughter examination. The uterine tumors were diagnosed as leiomyoma (6), fibroma (3), cyst-adenoma (1) and fibro-leiomyoma (1). The cervical/vaginal tumor appeared to be a fibroma. The ovarian lesions could not be satisfactorily classified. They consisted of connective tissue, blood vessels, and granulosa cells, which were present in variable quantities in different ovaries and in different sides of the same ovary. Sows with tumors were older than the mean determined age at slaughter (parity 6.8). Sows with uterine and cervical/vaginal tumors had a parity of 11.6; sows with ovarian lesions had a parity of 9.0. Sows with uterine- or a cervical/vaginal tumor were often slaughtered for infertility reasons.
在总共1445头母猪中，在11头母猪的子宫以及1头母猪的子宫颈/阴道中检测到肿瘤。在56头母猪的卵巢中检测到肿瘤样病变。肿瘤的发生率高于文献中提及的发生率，这可能是由于母猪年龄相对较大（平均胎次为6.8）以及检查的准确性。在常规屠宰检查期间，有几种肿瘤可能不会被检测到。子宫肿瘤被诊断为平滑肌瘤（6例）、纤维瘤（3例）、囊腺瘤（1例）和纤维平滑肌瘤（1例）。子宫颈/阴道肿瘤似乎是纤维瘤。卵巢病变无法得到满意的分类。它们由结缔组织、血管和颗粒细胞组成，在不同的卵巢以及同一卵巢的不同侧中数量各异。患有肿瘤的母猪比屠宰时确定的平均年龄（胎次6.8）更大。患有子宫和子宫颈/阴道肿瘤的母猪胎次为11.6；患有卵巢病变的母猪胎次为9.0。患有子宫或子宫颈/阴道肿瘤的母猪常常因不育原因而被屠宰。
