[Carotid-cavernous fistulas. A report of two cases].

Carotid-cavernous fistulas are uncommon anomalous communications between the venous cavernous sinus and the carotid arterial system. We present two cases studied at our center. We show the characteristic CT, MRI, and orbital ultrasound findings and review the relevant literature.

[Acute lobar nephronia: Diagnosis, treatment and prognosis].

Acute lobar nephronia is a focal form of acute bacterial renal infection. The prevalence of this disease is low. We report four cases of acute lobar nephronia.

[The use of magnetic resonance in the study of sensorineural hearing loss in children].

Although newborn screening of congenital hearing loss through otoacustic emissions allow prompt recognition, imaging techniques, such as CT and MRI are needed to get a morphological diagnosis. Furthermore they can be very useful in unilateral cases, whose clinical presentation is belated and more insidious. Our aim is to show the utility of MRI in the study of inner ear congenital anomalies, whose presentation is belated.

[Torticollis after unnoticed pharyngeal perforation: suspected retropharyngeal abscess].

Pharyngeal perforations due to foreign bodies are severe when retropharyngeal space infection develops into an abscess. Although the common clinical presentation is sore throat and fever, when the perforation remains occult, torticollis can be a significant symptom. Palatopharyngeal lesions, caused by rigid objects' impactation through the mouth, are common in childhood.