Signet Ring Dermatofibroma, a Rare and Confusing Variant
Published: May 1, 2015 | DOI: https://doi.org/10.7860/JCDR/2015/.5923
Asmaa Gaber Abdou, Nancy Youssef Asaad
1. Faculty of Medicine, Pathology Department, Menofiya University, Shebein Elkom, Egypt.
2. Faculty of Medicine, Pathology Department, Menofiya University, Shebein Elkom, Egypt.
Correspondence
Dr. Asmaa Gaber Abdou,
Faculty of Medicine, Department of Pathology, Menofiya University, Shebein Elkom, Egypt.
E-mail: Asmaa_elsaidy@yahoo.com.
Dermatofibroma is a common cutaneous benign fibrohistiocytic tumour, which is usually diagnosed without difficulty. In this report we demonstrated a signet ring variant of dermatofibroma as a rare variant of this common neoplasm together with the possible differential diagnosis.The presence of signet cells in cutaneous neoplasm does not necessarily means malignancy. Signet ring dermatofibroma is a rare variant eliciting differential diagnostic problems which can be solved by careful histopathological examination, searching for the classic areas and the help of immunohistochemistry.
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