Maeta Noritaka, Shimokawa Miyama Takako, Kutara Kenji, Kanda Teppei, Mitsui Ikki, Ohnishi Akihiro, Miyabe Masahiro, Shimizu Yuki, Saeki Kaori, Okamura Yasuhiko, Yamazoe Kazuaki
Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoino-oka, Imabari, Ehime 794-8555, Japan.
Vet Sci. 2021 Jan 2;8(1):6. doi: 10.3390/vetsci8010006.
A three-year-old male Pug presented with a three-year history of urolithiasis and repeated urethral obstruction. Biochemical analysis, ultrasonography, and retrograde urethrocystography revealed probable portosystemic shunt and incomplete urethral obstruction due to uric acid ammonium calculi. Enhanced computed tomography (CT) revealed portosystemic shunt and proliferation of the osseous tissue of the os penis, which was surgically removed. Histopathologically, the excised osseous tissue comprised bland lamellar bone without atypia or inflammation. Hyperplasia of the os penis was diagnosed based on the image findings and histopathology. The dysuria improved postoperatively. This is the first report of dysuria associated with non-neoplastic bone hyperplasia of the os penis in a dog. Careful evaluation of the os penis by CT is needed for accurate diagnosis in case of repeated penile urethral obstruction.
一只三岁雄性哈巴狗有三年的尿石症病史，并反复出现尿道梗阻。生化分析、超声检查和逆行尿道膀胱造影显示可能存在门体分流，且由于尿酸铵结石导致不完全尿道梗阻。增强计算机断层扫描（CT）显示门体分流和阴茎骨骨组织增生，遂对增生组织进行了手术切除。组织病理学检查显示，切除的骨组织为无细胞异型性或炎症的普通板层骨。根据影像学检查结果和组织病理学诊断为阴茎骨增生。术后排尿困难症状有所改善。这是首例关于犬阴茎非肿瘤性骨增生伴排尿困难的报道。对于反复出现阴茎尿道梗阻的病例，需要通过CT仔细评估阴茎骨以进行准确诊断。
