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S100A6 and c-Kit-Positive Spindle Cell Melanoma of the Dorsal Foot
Yasutaka Mitamura1, Takamichi Ito1, Misa Nakano-Nakamura1
1Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Case Reports in Dermatology
|June 17, 2014
Abstract:
Spindle cell melanoma, which is a rare form of melanoma, is clinically and histopathologically difficult to diagnose from a variety of nonmelanocytic spindle cell tumors. We describe a 42-year-old Japanese woman with amelanotic melanoma that comprised spindle cells with positive c-kit and S100A6 staining. The use of c-kit and S100A6 might be useful for improving the diagnosis.

