Merkel cell carcinoma in collision with squamous cell carcinoma and basal cell carcinoma in a patient on ruxolitinib treatment for myeloproliferative neoplasm

• Viviana Barrera-Penagos, MD,
• Daniela Castellanos-Leguizamón, BS,
• José Antonio Hakim-Tawil, MD,
• Juan José Santivañez, MD,
• Paula A. Rodríguez-Urrego, MD,
• Juan Carlos Hiromi López-Takegami, MD

Affiliations

Viviana Barrera-Penagos, MD

Department of Pathology and Laboratories, Fundación Santa Fe de Bogotá, Bogotá D.C., Colombia

Daniela Castellanos-Leguizamón, BS

Department of Pathology and Laboratories, Fundación Santa Fe de Bogotá, Bogotá D.C., Colombia

José Antonio Hakim-Tawil, MD

Division of Head and Neck Surgery, Fundación Santa Fe de Bogotá, Bogotá D.C., Colombia; School of Medicine, Universidad de los Andes, Bogotá D.C., Colombia

Juan José Santivañez, MD

Division of Head and Neck Surgery, Fundación Santa Fe de Bogotá, Bogotá D.C., Colombia

Paula A. Rodríguez-Urrego, MD

Department of Pathology and Laboratories, Fundación Santa Fe de Bogotá, Bogotá D.C., Colombia

Juan Carlos Hiromi López-Takegami, MD

Department of Pathology and Laboratories, Fundación Santa Fe de Bogotá, Bogotá D.C., Colombia; Correspondence to: Juan Carlos Hiromi López-Takegami, MD, Department of Pathology and Laboratories, Hospital Universitario Fundación Santa Fe de Bogotá, Cra. 7 No. 117 – 15, 2nd floor, 110111 Bogotá D.C., Colombia.