ملانوم بدخیم در یک اردک مالارد (Anas platyrhynchos)ماده

Melanomas are malignant neoplasms originating from melanocytes. They reported in birds.  In this  case, macroscopic and microscopic (the histopathologic and IHC) findings supported a final diagnosis  of cutaneous malignant melanoma in a mallard duck (Anas platyrhynchos). A female mallard duck  (Anas platyrhynchos) was observed with a mass on the ventral portion of the neck. The bird was anes- thetized with Diazepam/Ketamine. A skin incision was made on the ventral surface of the mass and blunt dissection was performed to separate the mass. The incision was sutured by a simple interrupted suture pattern. Mass was surgically excised for histopathological evaluation. Histologically, the mass was composed of nests and sheets of anaplastic, epithelioid, multinucleated and polygonal cells con- taining variable amounts of brown to black granules of melanin. The neoplasm showed immunoreactiv- ity for S-100 and Melan-A in the cytoplasm of the neoplastic cells. Based on the histopathological and IHC findings, this is the first report of malignant melanoma in a mallard duck (Anas platyrhynchos).

Keywords:

Anas platyrhynchos , Female , IHC , malignant melanoma , mallard duck