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Biomedical subjects

R A Ferris

Publications and source records attributed to R A Ferris.

8 recordsLinked to original sources
PubMed1979

Computed tomography of a carotid body tumor.

A patient with a carotid body tumor was evaluated by computed tomography. The tumor demonstrated an enhanced rim and a central lower density. This corresponds to the "eggshell" appearance described angiographically in carotid body tumors.

Adult↗
PubMed1976

Osteoblastic bone metastasis in Zollinger-Ellison syndrome.

The authors describe a case of osteoblastic metastasis in a patient with Zollinger-Ellison syndrome resulting from the presence of a pancreatic tumor, which they believe is the first such case documented. Following a total gastectomy for hyperacidity in a 53-year-old woman, a gradually enlarging liver was treated with steptozotocin. Radiation therapy to the areas of bony metastases resulted in complete alleviation of pain.

Bone Neoplasms↗
PubMed1976

The round nipple shadow.

It is usually easy to distinguish the round nipple shadow from a lesion, especially by means of repeat radiographs with nipple markers. However, the radiologist must occasionally interpret a round density in the lower chest on the basis of a single radiograph or series of radiographs. Fortunately, a nipple shadow usually has a well-defined outer margin and a poorly defined inner margin. Differentiation of a nipple shadow from an extrapleural or pleural lesion is described. Attention to these findings may prevent needless additional study and patient apprehension.

Humans↗
PubMed1976

Computed tomographic evaluation of aortic aneurysms.

Applications of computed tomography are being extended from the brain to other body parts. This report describes CT scanning of abdominal and thoracic aortic aneurysms in 30 patients. CT shows greatest promise in abdominal aortic scanning, where reliable identification of the aorta can be achieved even in the absence of enlargement or calcification. However, current limitations prevent visualization of internal detail such as intimal plaques or mural thrombi. Technical advances are described which should have an important bearing on this.

Aorta, Abdominal↗