Case report 844. Intraosseous pneumatocyst of the clavicle.
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Adult↗
Biomedical subjects
C S Linker
Publications and source records attributed to C S Linker.
Quadrilateral space syndrome: findings at MR imaging.
Shoulder pain due to compression of the axillary nerve by fibrous bands in the quadrilateral space has been termed the quadrilateral space syndrome. Selective atrophy of the teres minor muscle, which is innervated by the axillary nerve, was demonstrated at magnetic resonance imaging in three patients with clinical findings of the syndrome. This finding, in the appropriate clinical setting, is highly suggestive of the quadrilateral space syndrome, which is a potentially reversible cause of shoulder pain.
Adult↗
Traumatic pancreatic transection.
Pancreatic contusion or transection may result from blunt or penetrating trauma. Considerable morbidity and mortality may occur if the injury is not diagnosed and treated promptly. Clinical diagnosis of pancreatic injury due to blunt trauma is difficult, because the symptoms are often delayed and nonspecific. Computed tomographic scanning is the method of choice for the diagnosis of pancreatic injury, although abdominal ultrasound may be particularly useful in children. Endoscopic retrograde cholangiopancreatography is used to assess ductal integrity.
Abdominal Injuries↗
Salt stimulation of phosphate uptake in maize root tips studied by p nuclear magnetic resonance.
The effects of external salt and inorganic phosphate (Pi) on the concentrations of vacuolar Pi, and cytoplasmic Pi, ATP, glucose-6-phosphate and UDP-glucose in maize root tips were examined using (31)P nuclear magnetic resonance spectroscopy. We observed a more than two-fold stimulation of Pi uptake from 10 millimolar KH(2)PO(4) solutions when root tips were exposed to 100 millimolar NaCl + CaCl(2). This stimulation of Pi uptake was associated with an increase in the concentration of cytoplasmic Pi in root tip cells. Thus, the molar ratio of cytoplasmic Pi to Pi + ATP + glucose-6-phosphate + UDP-glucose increased greatly in root tips exposed to salt and Pi. We speculate that it is this disturbance in relative concentrations of cytoplasmic phosphates (which we show are normally tightly regulated) that is responsible for both the greater rate of uptake of Pi by vacuoles of excised maize root tips, and the previously documented stimulation of Pi translocation from root to shoot in whole maize plants exposed to salt and Pi.
Journal Article↗