Characteristic imaging Features of Merkel cell Carcinoma: A case Report

Background: Merkel cell carcinoma (MCC) is a rare primary cutaneous tumor. The standardized imaging guidelines for diagnosis of MCC have not been established. We report the multimodality imaging features of MCC including CT, MRI and ultrasound with grayscale and color Doppler mode as well as the elastography and even a histopathologic confirmation. Case Report: We report the case of a 76-year old male patient with MCC on the elbow that was treated by excision. On MRI, prominent T2 low signal voiding was noted with branching or chaotic pattern and marked, branching or chaotic vascularity was also seen on color doppler ultrasound. Those findings are corresponded to histology that increases vascularity in stromal tissues of the tumor and in between the tumor cells. Conclusion: A mass in the dermal and subcutaneous layer with marked and branching or chaotic vascularity, may be the unique characteristic that may contribute to early diagnosis of MCC.