Detection of musculoskeletal infection with 18F-FDG PET: review of the current literature

There are several studies on (18)F-FDG PET in the evaluation of musculoskeletal infection; however, a search of the literature failed to identify any large-scale studies. The 7 articles reviewed included 273 cases of suspected musculoskeletal infection evaluated by (18)F-FDG PET. This method was found to be sensitive and specific in the evaluation of chronic and acute osteomyelitis and prosthetic infection. Furthermore, (18)F-FDG PET was accurate in the evaluation of infection at previous surgical sites even within 12 mo of surgery. The current literature suggests that (18)F-FDG PET is a highly accurate method to detect musculoskeletal infection.     

Radiology of the orbital apex

The orbital apex, formed by the superior orbital fissure and optic canal, is the cross-road between the orbit and the intracranial structures. Pathological processes may extend intracranially via the superior orbital fissure and vice versa. In addition to intrinsic soft tissue lesions, various pathological processes may involve the surrounding osseous anatomy. Malignant lesions arising from adjacent structures or from haematogeneous metastasis may also infiltrate this region.     

Interpeduncular fossa sign: CT criterion of subarachnoid hemorrhage

A retrospective study of 100 cerebral computed tomography scans interpreted as displaying subarachnoid hemorrhage was undertaken to determine the frequency of blood in the interpeduncular fossa as a useful radiographic sign. The results indicate that the interpeduncular fossa sign is second only to blood in the Sylvian fissure-circular sulcus area as a reliable indicator of subarachnoid hemorrhage on CT scans.