Steinberg H
Department of Pathology, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853.
Avian Dis. 1988 Jan-Mar;32(1):166-8.
Exploratory abdominal surgery in a budgerigar with a history of lethargy, feather fluffing, and melena revealed a neoplastic mass associated with the jejunal muscularis. Histologically, the nonencapsulated cellular mass was composed of sheets of spindle-shaped cells with pleomorphic nuclei, numerous and bizarre mitotic figures, and admixed anaplastic sarcomatous and giant cells. Special stains confirmed the cell of origin as the leiomyocyte. These characteristics warranted a diagnosis of jejunal leiomyosarcoma, previously unreported in the budgerigar.
对一只伴有嗜睡、羽毛蓬松和黑粪症病史的虎皮鹦鹉进行的剖腹探查手术发现，空肠肌层有一个肿瘤性肿块。组织学检查显示，这个无包膜的细胞性肿块由成片的梭形细胞组成，细胞核具有多形性，有许多奇异的有丝分裂象，并混有间变性肉瘤细胞和巨细胞。特殊染色证实细胞起源为平滑肌细胞。这些特征确诊为空肠平滑肌肉瘤，此前在虎皮鹦鹉中未曾有过报道。
