Extraordinary Case ReportRare Case Report of Pilomatrical Carcinosarcoma in a Pediatric PatientGates, Gregory A. DO*; Nguyen, Johnny MD†; Binder, Scott W. MD‡Author Information *Department of Pathology, Division of Dermatopathology, David Geffen School of Medicine at UCLA, Los Angeles, CA; †Department of Pathology and Laboratory Medicine, Johns Hopkins All Children's Hospital, St. Petersberg, FL; and ‡Binder Institute of Pathology, Affiliated Pathology Medical Group, Rancho Dominguez, CA. Correspondence: Gregory A. Gates, DO, Department of Pathology and Lab Medicine, UCLA, 10833 LeConte Ave., CH AS-255C, Los Angeles, CA 90095 (e-mail: [email protected]). The authors declare no conflicts of interest. The American Journal of Dermatopathology: March 2020 - Volume 42 - Issue 3 - p 208-210 doi: 10.1097/DAD.0000000000001517 Buy Metrics Abstract We present a case report of the exceptionally rare pilomatrical carcinosarcoma in an even rarer pediatric age group, a 9-year-old female patient. The tumor showed biphasic pilomatrical carcinoma and malignant sarcomatous transformation. To date, the patient is healing well without signs of recurrence. Although limited clinical follow-up is available due to the recent diagnosis, this case may provide a rare look at the clinical outcome of this very rare tumor. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.