Bradford Carol, Wack Allison, Trembley Sarah, Southard Teresa, Bronson Ellen
Maryland Zoo, Baltimore, Druid Hill Park, Baltimore, MD 21217, USA.
J Avian Med Surg. 2009 Sep;23(3):214-21. doi: 10.1647/2008-015.1.
Neoplasms of the skin are occasionally seen in domestic birds but are uncommon in nondomestic birds. An 8-year-old male hooded merganser (Lophodytes cucullatus) was presented with bilateral axillary ulcerative lesions that improved but did not resolve with empiric antibiotic and antifungal therapy. Skin biopsies were taken, and bilateral feather folliculomas were diagnosed on histopathologic examination. The duck was euthanatized because of the poor prognosis. A 9-year-old Indian runner duck (Anas platyrhynchos) was presented with an ulcerative lesion, with pseudomembrane and serocellular crust affecting the axillary region. This mass was diagnosed as a basosquamous carcinoma. The mass was surgically excised, and no recurrence was observed. Feather folliculomas are usually considered benign neoplasms in domestic birds and may be primarily ulcerative, exudative, bilateral, and symmetric in location. Basosquamous carcinoma may have a similar gross appearance. It is unknown if the axillary region may be an area with increased incidence of neoplasia in birds. This appears to be the first report of feather folliculoma and basosquamous carcinoma in Anseriforme species. Feather folliculomas and other neoplasms, such as basosquamous carcinoma, should be considered as a differential diagnosis in ulcerative or proliferative skin lesions in birds.
皮肤肿瘤偶尔可见于家禽,但在非家禽类鸟类中并不常见。一只8岁的雄性冠潜鸭(Lophodytes cucullatus)出现双侧腋窝溃疡性病变,经验性使用抗生素和抗真菌治疗后病情有所改善,但未痊愈。进行了皮肤活检,组织病理学检查诊断为双侧毛囊瘤。由于预后不良,这只鸭子被实施了安乐死。一只9岁的印度跑鸭(Anas platyrhynchos)出现溃疡性病变,腋窝区域有假膜和浆液性结痂。该肿物被诊断为基底鳞状细胞癌。肿物通过手术切除,未观察到复发。毛囊瘤在家禽中通常被认为是良性肿瘤,可能主要表现为溃疡性、渗出性、双侧性且位置对称。基底鳞状细胞癌可能有类似的大体外观。尚不清楚腋窝区域是否可能是鸟类肿瘤发生率增加的部位。这似乎是关于雁形目物种中毛囊瘤和基底鳞状细胞癌的首次报道。毛囊瘤和其他肿瘤,如基底鳞状细胞癌,应被视为鸟类溃疡性或增生性皮肤病变的鉴别诊断。