[MRI evaluation of fistula in ano]. / Avaliação por ressonância magnética nuclear de fístulas peri-anais.

Fistula in ano is a frequent disease, which often has a difficult diagnosis and mapping, and comports significant morbidity. Today, Magnetic Resonance (MRI) allows a rapid, simple and precise mapping of peri anal fistula, which leads to a correct surgical treatment. In this paper, the authors review its pathology and MRI role in diagnosis and mapping. The authors also report a retrospective and descriptive study on the MRI results for the mapping of fistula in ano performed in Hospital Fernando Fonseca for a 38-month period.

[Emphysematous pyelonephritis]. / Pielonefrite enfisematosa.

A case of emphysematous pyelonephritis to E. coli, in a 63-year-old female diabetic patient is presented herein. Imaging techniques (plain abdomen X-Ray, ultra-sonography and computed tomography) allowed the authors to make the diagnosis. Percutaneous nephrostomy, combined with medical therapeutics, contributed to a favourable clinical evolution of the patient.