Congenital systemic melanosis in a black mongrel pig

Jeong, Y.J., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea; Jung, J.Y., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea; Her, J.W., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea; Baek, K.H., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea; Lee, J.H., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea; Lee, M.H., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea; Yoon, S.S., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea

Congenital systemic melanosis in a black mongrel pig

2015

Jeong, Y.J., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Jung, J.Y., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Her, J.W., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Baek, K.H., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Lee, J.H., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Lee, M.H., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Yoon, S.S., Division of Animal Disease Diagnosis, Department of Animal Disease Control and Quarantine, Animal and Plant Quarantine Agency, Anyang, Republic of Korea

Four 3-day-old piglets with retarded growth were submitted to the Animal and Plant Quarantine Agency for diagnosis. Necropsy showed that one piglet had black spots ranging from 2 mm to 1 cm in diameter in the cerebellum, lungs, regional lymph nodes, and cecum. Histological findings were consistent with the gross appearance in which melanin pigmentation was observed in the organs mentioned above. Based on Fontana-Masson staining, we diagnosed this animal with systemic melanosis. To the best of our knowledge, this is the first case of systemic melanosis in black breeds of swine in Korea.

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