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. Author manuscript; available in PMC: 2013 Dec 16.
Published in final edited form as: Hum Pathol. 2013 May 9;44(9):1902–1911. doi: 10.1016/j.humpath.2013.01.025

Figure 1. Immunohistochemical results.

Figure 1

A and B, Melan-A staining in case 17 shows a significant staining of neoplastic cells in both the in situ (A), and the invasive (B) components, with a strong and diffuse expression. The invasive components is mostly composed of sheets of spindle cells; C and D, C-Kit receptor is expressed in the majority of the neoplastic, morphologically undifferenciated cells in case 10, both by in situ (C) and invasive (D) cells; E and F, Representative cyclin-D1 immunostainings showing a strong nuclear expression by in situ and invasive components of case 17 (E) and 14 (F), respectively.