Fig. 1

Histological sections of amelanotic melanoma specimen A hematoxylin and eosin sections at ×4 magnification identifying primary neoplasm within the left upper inner crus. B Positive staining for S-100 (×4), C positive staining for Vim (×4) and D positive staining for HMB-45 (×4) indicate a malignant melanocytic neoplasm