Shoulder and humerus trauma.

Three bones and two joints comprise the pectoral girdle. These are the clavicle, scapula, proximal humerus, acromioclavicular joint, and shoulder joint. The pectoral girdle binds the upper extremity to the torso. Thus, injury to any of the pectoral girdle's components can impact the function of the entire extremity. The spectrum of pectoral girdle injuries ranges from a simple acromioclavicular joint sprain to scapulothoracic dissociation. Whereas the former is a painful but self-limiting injury with minimal sequelae, the latter is life threatening. However, the severity of most pectoral girdle injuries lies between these two extremes. Fractures and dislocations are common in this region throughout life, and a clear understanding of the patterns of injury and their radiographic spectrum is essential for all radiologists who deal with trauma.

Cervical spine tomography with an angiographic C-arm.

Phantom studies were performed to develop a technique for linear tomography of the craniocervical junction with a digital fluoroscopic angiographic C-arm unit. Section thicknesses were similar to those used at conventional tomography, and the radiation dose was lower. C-arm tomography was possible with a 6-second exposure and a 40 degrees arc. C-arm tomography is a practical method for decreasing patient turnaround time.

Pulmonary nodular amyloidosis in a patient with Sjögren's syndrome diagnosed by transthoracic biopsy.

A variety of pulmonary diseases may accompany Sjögren's syndrome. We report a rare case of pulmonary nodular amyloidosis in a woman with Sjögren's syndrome that was diagnosed by fluoroscopic transthoracic needle biopsy.