[Spontaneous pneumomediastinum. Review of eight cases].

Background: Hamman syndrome or spontaneous pneumomediastinum is uncommon and its clinical manifestations are chest pain, dyspnea and subcutaneous emphysema.

Aim: To report a series of patients with spontaneous pneumomediastinum.

Material And Methods: Medical records of patients with the diagnosis of pneumomediastinum, managed between 2002 and 2007 in a public hospital, were retrieved and reviewed.

[Spontaneous retroperitoneal hematoma. Report of one case].

Spontaneous retroperitoneal hematoma is a rare condition. We report a 78 year-old man with progressive pain in his right thigh and hip lasting one week. The pain subsequently was associated with abdominal pain in the right lower quadrant.