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The totally implantable catheter system has gained popularity as venous access when prolonged treatment is needed. Despite its frequent use, intravascular fracture and embolization of catheter fragments from implantable venous port-catheter systems present a rare but potentially life-threatening complication. Any implanted catheters should therefore be(More)
We report on the appearance of parathyroid, thyroid, and cervical thymic cysts on computed tomography (CT) scans. The differential diagnostic considerations include thyroglossal and branchial cleft cysts, cystic hygromas, primary and metastatic tumors, dermoids, teratomas, choristomas, tracheoesophageal and cervical bronchogenic cysts, as well as cystic(More)
Use of diagnostic imaging studies for evaluation of pregnant patients with medical conditions not related to pregnancy poses a persistent and recurring dilemma. Although a theoretical risk of carcinogenesis exists, there are no known risks for development of congenital malformations or mental retardation in a fetus exposed to ionizing radiation at the(More)
Internal jugular vein thrombosis is a vascular disorder that is easily overlooked or misdiagnosed. It occurs in a variety of clinical settings which disrupt normal blood flow through the internal jugular vein. Intravenous drug abusers represent a high risk group in this study. Diagnosis is readily made by computed tomography. Seven patients are presented,(More)
Sonographic images of the vocal cords were obtained in 41 healthy human subjects using a phased array realtime ultrasound scanner. The thyroid cartilage provides the acoustic window for sonographic visualization of the vocal cords. The false vocal cords appear as hyperechoic structures, while the true vocal cords are seen as hypoechoic structures. The(More)
  • D L Reede
  • 1996
The thoracic inlet is the junction between the neck and the chest. A number of neural structures traverse this region. A knowledge of the location of these various neural structures and their relationship to one another is important when interpreting cross-sectional images of this region. This article will review the normal anatomy of the major neural(More)
The ability to identify surgical sinus disease using diagnostic nasal endoscopy and coronal CT scanning of the paranasal sinuses is studied prospectively. Fifty consecutive patients with symptoms of chronic sinusitis lacking surgical indications by traditional work-up comprise the patient population. Sixty percent had endoscopic or CT indications for(More)
  • D L Reede
  • 1993
Magnetic resonance imaging is the modality of choice for the evaluation of the brachial plexus. Regardless of the cross-sectional imaging modality used, a knowledge of the anatomy in the lower neck and thorax is necessary in the interpretation of these studies. Before imaging an attempt should be made to determine the possible etiology and location of the(More)
Horner's syndrome (HS) occurs when there is interruption of the oculosympathetic pathway (OSP). This article reviews the anatomy of the OSP and clinical findings associated with lesions located at various positions along this pathway. The imaging findings of lesions associated with HS at various levels of the OSP, classified as preganglionic HS (first- and(More)