Which among the followings is not a round cell tumour of dogs? | Agrigyan

• Cutaneous Round Cell Tumors in Dogs: The canonical canine round cell tumor group comprises five classic neoplasms characterized by discrete round-to-oval cells exfoliating individually on cytology:
• Mast Cell Tumor (MCT)
• Malignant Lymphoma (Lymphosarcoma)
• Cutaneous Histiocytoma
• Transmissible Venereal Tumor (TVT)
• Plasmacytoma
• Classification of Malignant Melanoma: Melanocytic neoplasms are taxonomically classified as neuroectodermal / mesenchymal-epithelioid tumors. Histologically and cytologically, melanoma cells display marked pleomorphism—ranging from spindled to epithelioid sheets containing melanin granules—and are not classified as round cell tumors.

Correct option: (1) Malignant melanoma