[Labyrinthitis ossificans].

Labyrinthitis ossificans is a pathology consisting of calcification of the membranous labyrinth resulting in profound sensory deafness. It is usually due to an acute inflammatory process that progresses to ossification of the labyrinth. The clinical manifestations are irreversible hearing loss, dizziness and vomiting.

[Imaging findings in renal angiosarcoma.].

Los angiosarcomas son tumores malignos de alto grado poco frecuentes y de mal pronóstico. Constituyen el 2% de todos los sarcomas de tejidos blandos. Se originan en el endotelio de los vasos linfáticos y vasculares.

[Ectopic pregnancy on uterine scar from cesarean section].

Ectopic pregnancy is defined as the implantation of the fertilized egg outside the uterine cavity. About 95% of ectopic pregnancies are located in the tube. Non-tubal forms, in particular on the scar of a cesarean section, are a very rare entity whose early diagnosis and treatment are essential to avoid serious complications and preserve fertility.

[Mild encephalitis/encephalopathy with a reversible splenial corpus callosum lesion (MERS)].

Introduction: Mild encephalitis/encephalopathy with a reversible isolated splenial corpus callosum lesion (MERS) is a clinical-radiological syndrome characterized by a lesion in the center of the splenium identified by magnetic resonance imaging (MRI), the imaging test of choice.

Case Report: A 31-year-old man is admitted with fever, intense hemicranial headache, disorientation, dysarthria and paresthesia in the lips and both upper extremities is presented; and that he is admitted for a suspected diagnosis of viral encephalitis. The cerebrospinal fluid analysis shows an elevation of proteins and the electroencephalogram shows generalized slowing, predominantly on the left.

[Bouveret syndrome: unusual cause of gallstone ileus].

Introduction: Bouveret syndrome consists of an obstruction of the gastric outlet due to the impaction of a gallstone in the duodenal bulb after migration through a cholecystoduodenal fistula.

Clinical Case: Patient with diffuse colicky abdominal pain, diarrhea and yellowish vomiting. The imaging tests carried out reveal significant gastric and duodenal dilation with the presence of gas at the gallbladder level with the existence of a cholecystoduodenal fistula with a rounded intraluminal image in the proximal jejunum compatible with migrated lithiasis.