actas urol esp. 2010;34(5):489–491 491 Foreign body like reason of failure in bladder catheterization Cuerpo extraño como causa de fracaso en el sondaje vesical Figures 1 and 2 – Foreign body at urethral bulb level (photo 1). The foreign body belongs to the plug of a urological lubricant tube (photo 2). J. Subirá Ríos*, B. Blasco Beltrán, J. Navarro Gil, I. Hijazo Conejos, and J.G. Valdivia Uría *Author for correspondence. E-mail: kokedoc@hotmail.com (J. Subirá Ríos). Department of Urology, Hospital Clínico Universitario Lozano Blesa, Saragossa, Spain Vesicosigmoidal fistula secondary to sigmoid diverticula Fístula colovesical secundaria a divertículos sigmoideos Figure 1 – Barium meal enema showing multiple diverticula in sigmoid colon and filling of urinary bladder with barium contrast suggesting colovesical fistula. Figure 2 – Passage of fecaloid material into the bladder confirms diagnosis. R. Gil Ugarteburu*, I. González Rodríguez, I. Fernández García, A. Martín Huescar, L. Rodríguez Villamil, and V. Muruamendiaraz Fernández *Author for correspondence. E-mail: guerrillas3@hotmail.com (R. Gil Ugarteburu). Department of Urology, Hospital Cabueñes, Gijón, Asturias, Spain