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Biomedical subjects

E K Fishman

Publications and source records attributed to E K Fishman.

At least 109 records · Page 6Linked to original sources
PubMed1998

CT and MR evaluation of pancreatic cancer.

CT scanning has a greater than 90% accuracy in staging patients with pancreatic cancer. New, powerful imaging techniques, such as spiral CT and gadolinium-enhanced MRI, can evaluate subtle changes in pancreatic contours and overall vascularity of the gland to further increase staging reliability. Spiral CT in particular provides excellent depiction of small vessels, high levels of pancreatic enhancement, and lack of respiratory misregistration. High resolution contrast-enhanced MR techniques may provide a new role for MR imaging in the evaluation of pancreatic cancer. This article discusses state-of-the-art CT and MR imaging techniques for pancreatic evaluation.

Diagnosis, Differential↗
PubMed1998

Pulmonary gangrene: radiological and pathologic correlation.

Although frequently referred to as pulmonary abscess or necrotizing pneumonia, pulmonary gangrene is a distinct entity, requiring prompt medical and often surgical management. Radiographically, it begins as a lobar consolidation, usually in the upper lobes, develops lucencies, and coalesces to form a cavity. A "mass within a mass" or air crescent sign may be present. A vasculitis ensues, devitalizing parenchyma that must be drained surgically or expectorated through a patent bronchus. Serious complications of pulmonary gangrene that often lead to death are detected on computed tomography (CT) before these changes are apparent on chest radiographs. Specifically, a narrowed or obliterated bronchus impedes drainage of necrotic parenchyma and thrombosis of large vessels prevents the delivery of antimicrobial therapy. We review the literature and report this case to show the importance of CT in the early detection and management of pulmonary gangrene.

Fatal Outcome↗
PubMed1998

CT evaluation of mediastinal masses in children: spectrum of disease with pathologic correlation.

The mediastinum is the site of a variety of benign and malignant pathological processes in children. While the chest radiograph may be the initial imaging study to suggest an abnormality, spiral or helical CT provides detailed depiction of anatomic relationships and characteristics of the mass, and may increase the likelihood of a successful examination because of shorter scan times. This article will emphasize the important CT features in the evaluation of common and uncommon mediastinal masses in children. Pathologic correlation is presented for greater understanding. In many clinical settings, CT features such as attenuation, enhancement, calcification, anatomic relationships and extent of disease may suggest a specific diagnosis for a mediastinal mass in a child.

Adolescent↗
PubMed1997

Infantile myofibromatosis.

Infantile myofibromatosis is a mesenchymal tumor most commonly seen in infancy. The tumors have a variable appearance on CT/MR and often simulate a more aggressive neoplasm. This report describes CT/MR findings in cases of infantile myofibromatosis with pathologic correlation. Discussion into the success of imaging in suggesting the correct diagnosis is also addressed.

Buttocks↗
PubMed1997

Thrombosis of the deep femoral vein: a potential pitfall of color flow duplex Doppler ultrasonography.

This case illustrates a potential pitfall of color flow duplex Doppler ultrasonography with compression in the evaluation of suspected deep venous thrombosis (DVT). Because of its low cost, accuracy, and noninvasiveness, ultrasonography is the appropriate first choice in the evaluation of suspected DVT, but there does exist the possibility of a false-negative examination. Magnetic resonance venography (MRV) should be reserved for cases in which there is a high clinical suspicion for DVT, as well as either morbid obesity that would limit the evaluation of deep pelvic and deep femoral veins or conflicting results of other imaging studies. All cases of suspected thrombosis, including those not adequately evaluated by ultrasonography, can be accurately assessed by MRV, which is not as invasive as standard venography.

Adult↗
PubMed1997

Primary adrenal ganglioneuroma: CT findings in four patients.

OBJECTIVE: The purpose of this study was to characterize the appearance of adrenal ganglioneuroma on CT scans and to define the specific imaging features of the tumor. CONCLUSION: Adrenal ganglioneuroma is an uncommon benign tumor that is revealed as a solid adrenal mass on CT scans. Specific CT features such as calcification and lesion enhancement may simulate a primary adrenal carcinoma. However, in our four patients, no signs of local invasion or vascular extension were noted. The specific diagnosis of adrenal ganglioneuroma requires either biopsy or surgical removal for documentation.

Adrenal Gland Neoplasms↗
PubMed1997

An interactive computer-based tool for teaching the segmental anatomy of the liver: usefulness in the education of residents and fellows.

OBJECTIVE: The purpose of this study was to develop an interactive computer-based tool for teaching hepatic segment anatomy and to evaluate its usefulness for radiology education. CONCLUSION: An interactive computer-based teaching tool has been developed that effectively teaches the segmental anatomy of the liver to radiology residents and fellows who have a wide range of baseline knowledge of hepatic anatomy.

Computer-Assisted Instruction↗