By J. D. Pickard, Concezio Di Rocco, V. V. Dolenc, R. Fahlbusch, N. De Tribolet
Offers a set of papers representing fields of neurosurgery and comparable parts within which vital fresh advances were made. Discusses problems of attention, scientific review and surgical strategies in temporal lobe epilepsy, and extra. subsidized via the ecu organization of Neurosurgical Societies.
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Additional resources for Advanced Imaging of the Abdomen
These tumors are isointense with skeletal muscle on T1-weighted MRI and hyperintense on T2-weighted MRI. 27. A carcinosarcoma presents as an expansile intraluminal polyp (arrows). ) Commonly a carcinosarcoma presents as an intraluminal polyp mimicking a ﬁbrovascular polyp (Fig. 27). Melanoma Other Although liposarcomas are relatively common throughout the body, they are rare in the esophagus. Some appear polypoid, and imaging suggests a ﬁbrovascular polyp. A hypopharyngeal liposarcoma grew submucosally into the esophagus (85).
Etiology of globus pharyngis is not known, although gastroesophageal reﬂux has been postulated to play a role. These patients usually do not have dysphagia. Esophageal manometry in consecutive patients with a globus sensation without dysphagia at Helsinki University Hospital detected an abnormality in 67% of these patients, most often consisting of a nonspeciﬁc motility disorder, and 62% also had a positive Bernstein test (110). Published imaging studies do not agree. Some have found normal pharyngeal function and normal pH monitoring, with only an occasional cricopharyngeus muscle dysfunction; others, however, describe pharyngeal stasis, pharyngoesophageal sphincter dysfunction, and nonspeciﬁc esophageal peristalsis common; videoﬂuoroscopy combined with static radiography yields more abnormalities than either study alone.
Killian-Jamieson Diverticula Lateral hypopharyngeal pouches, also called Killian-Jamieson diverticula, are uncommon. Most are asymptomatic, with an occasional one resulting in dysphagia. They tend not to be associated with aspiration. These diverticula are detected with a frontalview pharyngogram. A pseudo–Valsalva maneuver aids in identifying them. Unilateral left-sided diverticula are more common than bilateral or right-sided ones (116). (Pseudo)diverticulosis Occasionally encountered are multiple small diverticular-like outpouchings.
Advanced Imaging of the Abdomen by J. D. Pickard, Concezio Di Rocco, V. V. Dolenc, R. Fahlbusch, N. De Tribolet