Merkel cell carcinoma coexisting with squamous cell carcinoma⋆ Mariana Abdo de Almeida, Neusa Yuriko Sakai Valente, Mariangela Cristina Crispino Barata, Emílio Martins Curcelli, Bruna Nascimento Arruda Scabello

Spontaneous regression of Merkel cell carcinoma with positive detection of Merkel cell polyomavirus by PCR and immunohistochemistry Thiago Rubim Bellott, Flávio Barbosa Luz, Rafael Brandão Varella, Mayra Carrijo Rochael

Giant, aggressive Merkel cell carcinoma of the right arm Piotr Brzeziński, Justyna Słomka, Aleksandra Kitowska, Cesar Bimbi