Fig. 2.

Histopathological appearance of the removed tissue.

a- Low magnification (H& E) showing polygonal cell sheets with heavy pigmentation with no anaplasia.

b- High Magnification (H& E ×200) showing obscured cytoplasm details due to heavy pigmentations with no anaplastic features or necrosis.

c–f: Immunohistochemical staining.

c- HMB-45, low magnification.

d- HMB-45, high magnification.

e− S-100, low magnification.

f- S-100, high magnification.

(MRI:magnetic resonance imaging, Rt; right, Lt; left, H&E;hematoxylin and eosin, HMB; human melanoma black).