Liver Metastases of Unknown Primary: Malignant Melanoma
Figure 2
(a) Malignant melanoma, containing melanin pigment in the cytoplasms. Large, pleomorphic, vesicular nuclei and large clear cytoplasm with HMB45 positive reaction. Liver parenchyma in the surrounding, 4 × 10 MR. (b) Malignant melanoma infiltration containing melanin pigment in the cytoplasms. Large, pleomorphic, vesicular nuclei and large clear cytoplasm with atypic cells. Liver parenchyma in the surrounding. H × E, 4 × 10 MR. (c) Malignant melanoma, containing melanin pigment in the cytoplasms, recessive cellular details, infiltrating to the surrounding liver parenchyma. H × E, 10 × 10 MR.
