In pigs, the description of malignancies is relatively rare, probably due to the short life that have most productive animals. Melanomas are the result of the proliferation of melanoblasts. Have been described mainly in Duroc animals. Usually located in the flanks.

In breeds used in biomedical experimentation (Hormal and Sinclair miniature) have been described as congenital neoplasms.

A: Cutaneous melanoma in a six months old pig . B: Inguinal lymph node metastasis .

A: Cutaneous melanoma in a six months old pig . B: Inguinal lymph node metastasis .

A: Cutaneous melanoma in the hind limb of a six months old pig . Methastasis presented in the inguinal lymph node. B: This image corresponds to subcutaneous adipose tissue in the histological study the presence of benign-appearing melanocytes with ectopic migration to other dermal structures was observed. Its link to the presence of a melanoma is unknown.

A: Cutaneous melanoma in the hind limb of a six months old pig . Methastasis presented in the inguinal lymph node. B: This image corresponds to subcutaneous adipose tissue in the histological study the presence of benign-appearing melanocytes with ectopic migration to other dermal structures was observed. Its link to the presence of a melanoma is unknown.