Introducción: El Perú es el segundo país con mayor carga de Tuberculosis y el primero en reportar casos de tuberculosis multidrogorresistente (TB MDR) en Sudamérica. La resistencia a la rifampicina es considerada por la Organización Mundial de Salud como un marcador para tuberculosis multidrogorresistente, ya que diversos estudios han demostrado que más del 90% de cepas con resistencia a rifampicina en escenarios de alta prevalencia de TB MDR, se comportan como multidrogorresistentes. Por otra parte, la mono resistencia a rifampicina es un fenómeno poco frecuente que no ha sido estudiado ampliamente en nuestro medio. Objetivos: Determinar la proporción de casos con resistencia a rifampicina por prueba de sensibilidad rápida que resultan multidrogorresistente mediante la respectiva prueba de sensibilidad convencional. Asimismo, determinar la proporción de pacientes con mono resi...

Hyperimmunoglobulin E syndrome or Job syndrome is defined as an immune and connective tissue disorder that results in complications such as invasive infections. On the other hand, Fournier gangrene is a rapidly progressive necrotizing fasciitis that affects the perineal area, has a polymicrobial etiology, and its treatment consists of rapid and aggressive surgical debridement, antibiotic therapy, and hemodynamic support. We present the case of Fournier gangrene in an 11-year-old boy with a diagnosis of hyperimmunoglobulinemia E. who was admitted with scrotal necrosis with favorable evolution after initial medical management.

Ureterocele is a cystic dilation of the distal ureter that exits into the urinary bladder. It is a rare condition in adults of which women are the most affected. Its clinical manifestations are very broad and among them the presence of a vulvar mass and symptoms of urinary obstruction stand out. We report the case of a strangulated ureterocele prolapse in a 54-year-old woman with a vulvar mass and signs of urinary obstruction. Initial management with reduction of the mass and finally decided to perform a ureteral reimplantation. Favorable evolution in medical follow-up.