Retrorectal hamartoma cyst (tailgut cyst) in a young man Maite Rodrigo-Calvo; Ivan Archilla; Silvia Alos; Nuria Vidal-Robau; Karmele Saez de Gordoa; Julián Moreno; Oriol Sendino; Miriam Cuatrecasas;

Perivascular epithelioid cell neoplasm (PEComa) harboring TFE3 gene rearrangements in a patient with Lynch syndrome Ana B. Larqué; Gerard Frigola; Natalia Castrejón; Sherley Díaz-Mercedes; Eva Musulén Palet; Carolina Martínez Ciarpaglini; Stefania Landolfi; Antonio M. Lacy; Francesc Balaguer; Miriam Cuatrecasas;

Brief guidelines for beginners on how to perform and analyze esophageal high-resolution manometry Andrés R. Latorre-Rodríguez; Sumeet K. Mittal;