Contribution of imaging to the evaluation of pyomyositis.

Purpose: To analyse the fundamental features of each imaging modality with the aim of defining their contribution to the diagnosis of pyomyositis.

Materials And Methods: We retrospectively reviewed 10 observations collected between 1997 and 2004, 5 of paravertebral muscles and 5 of the muscles of the limbs. Imaging was carried out with US (8/10 observations) and/or CT (9/10 observations), and/or MRI (6/10 observations).

Imaging of bone micro-injuries.

Purpose: We evaluated the fundamental signs of each imaging modality to define the role of MRI in identifying and characterizing bone micro-injuries.

Materials And Methods: We retrospectively reviewed 50 MRI examinations performed after preliminary conventional radiography on 25 stress fractures and 25 insufficiency fractures between 1989 and 2002. The number of lesions identified was 55: 11 were evaluated with CT and 9 with radionuclide bone scan.