抄録
A case of malignant melanoma in 68-year-old male was reported. The metastasis of malignant melanoma (histologically amelanotic type) in the vertebrae were clinically discoverd through surgical specimen.
The autopsy revealed the numerous metastasis foci in the liver, both lungs, vertebrae and marked melanosis of the entire large intestines. Inspite of complete histological examination of the whole organs, including the large intestines, the possible site of the primary focus could not be found.
