Brief ReportMelanocytic Matrical Carcinoma Mimicking MelanomaJi, Chao MD*,†; Zhang, Yue MD*,‡; Heller, Patricia MD*; Guo, Ying MD*Author Information *Ackerman Academy of Dermatopathology, New York, NY; †Department of Dermatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China; and ‡Department of Dermatology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China. Reprints: Ying Guo, MD, Ackerman Academy of Dermatopathology, 145 East 32nd Street, 10th Floor, New York, NY 10016 (e-mail: firstname.lastname@example.org). C. Ji and Y. Zhang did this work when they were fellows in Ackerman Academy of Dermatopathology, and contributed equally to this article. The authors declare no conflicts of interest. The American Journal of Dermatopathology: December 2017 - Volume 39 - Issue 12 - p 903-906 doi: 10.1097/DAD.0000000000000771 Buy Metrics Abstract Melanocytic matrical carcinoma is a very uncommon malignant neoplasm with follicular differentiation. The lesion often presents as a solitary nodule on sun-exposed skin of elderly patients. Histopathologically, it is characterized by proliferation of atypical matrical cells admixed with an increased number of melanocytes, and some atypical matrical cells may have cytoplasmic pigment. When melanocytic proliferation or melanin pigment is prominent, melanocytic metrical carcinoma can mimic melanoma. Here, we present a novel case of melanocytic matrical carcinoma mimicking melanoma in an 80-year-old man with our findings in histopathologic and immunohistochemical study. Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.