lipoma
fibroma
hemangioma
https://www.researchgate.net/profile/Rodrigo_Valerio/publication/267996946_Mucoceles_lesoes_frequentes_na_cavidade_bucal_de_criancas_Mucoc
eles_frequent_lesions_in_children%27s_mouth/links/54b47f600cf26833efd02643.pdf
https://books.google.com.mx/books?id=pkxrRi16ZfcC&pg=PT290&dq=mucocele&hl=en&sa=X&ved=0ahUKEwiB5d2F_anRAhVqy1QKHfbqCtsQ6AEIHzA
B#v=onepage&q=mucocele&f=false
https://www.researchgate.net/publication/259960487_Mucocele_and_Fibroma_Treatment_and_Clinical_Features_for_Differential_Diagnosis
http://www.actapediatrica.com/index.php/secciones/dermatologia-
pediatrica/download/575_2f5a1c4ec415f8337654e86f90bf9428