Department of Pathogenetic and Preventive Veterinary Science, Joint Faculty of Veterinary Medicine, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.
Kagoshima Crane Conservation Committee, 1000 Bunkacho, Izumi, Kagoshima 899-0208, Japan.
J Vet Med Sci. 2020 Aug 19;82(8):1093-1096. doi: 10.1292/jvms.20-0241. Epub 2020 Jun 8.
An adult male Hooded Crane was found dead on the Izumi plane. At autopsy, subcutaneous nodules were found around the medial and lateral sides of the left distal tibiotarsus bone. The largest cross-section of the masses revealed a multilobular pattern, with small amounts of viscous mucus. Histopathologically, the nodules were composed of three types of neoplastic cells: chondrocytic cells with abundant lightly basophilic cartilaginous matrices, mesenchymal cells and a small portion of the neoplastic tissue consisted of undifferentiated neoplastic cells exhibiting a high mitotic count and frequent multinucleation. This is the first case of a chondrosarcoma including undifferentiated neoplastic cell proliferation in a wild Hooded Crane.
一只成年雄性蓑羽鹤被发现在出羽平原死亡。尸检时，在左胫骨远端的内侧和外侧发现皮下结节。肿块的最大横截面呈多叶状，有少量粘性粘液。组织病理学上，结节由三种类型的肿瘤细胞组成：富含淡嗜碱性软骨基质的软骨细胞、间充质细胞和一小部分肿瘤组织由未分化的肿瘤细胞组成，这些细胞表现出高有丝分裂计数和频繁的多核化。这是首例野生蓑羽鹤中包含未分化的肿瘤细胞增殖的软骨肉瘤病例。
