Síndrome de Susac en un paciente con colitis ulcerosa.

The Susac's syndrome is a rare disorder that was first described in 1979 and is characterized by a classic triad consisting in encephalopathy, visual impairment and sensorineural hearing loss. However, the etiology of the disease is still unclear. We report the case of a 29-year-old with ulcerative colitis treated with mercaptopurine, six months before to her admission started with personality changes attributed to symptoms of depression who subsequently present neurological symptoms characteristic of Susac's Syndrome.

Gastrointestinal infection with Mexican TcI Trypanosoma cruzi strains: different degrees of colonization and diverse immune responses.

Mexican Ninoa and Queretaro (Qro) TcI strains of Trypanosoma cruzi have shown different degrees of virulence, and the two strains produce heterogeneous immune responses in the hearts of infected mice. This work shows that the same strains can invade the intestine by an intraperitoneal route and establish an infection, mainly in the colon. The three segments of the small intestine (duodenum, jejunum and ileum) were infected to a lesser degree than the colon.