Biomedical subjects

K Ranniger

Publications and source records attributed to K Ranniger.

At least 19 recordsLinked to original sources

PubMed1977

Cavography in the management of malignant abdominal tumors.

Six cases of malignant abdominal neoplasm with extensive tumor involvement of the veins form the basis of this report. One case was a child with retroperitoneal liposarcoma. Proper therapeutic management in these cases was dependent upon a complete angiographic evaluation, including cavography. This procedure is virtually without complications and should, therefore, be done routinely in cases of abdominal neoplasms for evaluation of the operability, to confirm the angiographic findings indicating intravenous tumor invasion or extravenous compression, and as a primary examination in the assessment of possible or known abdominal tumors in children.

Abdominal Neoplasms↗

PubMed1976

Angiography and ultrasonography. A comparative study of abdominal aortic aneurysms.

Ultrasound is presently the diagnostic procedure of choice in pulsatile abdominal masses. The ease and accuracy of this method have many advantages over aortography, and ultrasonography can accurately define the size of an abdominal aortic aneruysm. In addition, a normal aorta with an overlying mass, or a tortuous aorta which feels unusually prominent, can be detected, and aortography may not be necessary. Although ultrasound can detect involvement of iliac arteries, it does not allow assessment of the position of the aneurysm relative to the renal arteries, or detect involvement of other branch vessels of the aorta. Ultrasound is more accurate that clinical examination, plain roentgenography, aortography, or isotope aortography in the diagnosis of abdominal aortic aneurysms.

Aorta, Abdominal↗

PubMed1976

Radiographic findings in aneurysms of the aorta.

The use of specific radiographic criteria in the investigation of an aneurysm of the aorta will enable the physician to determine its etiology with a high degree of accuracy. The etiology, location, type, and extent of an aneurysm determine the proper mode of therapy. Aortography, therefore, is the single most important examination for the diagnosis, and will predict the ultimate prognosis in a patient with an aortic aneurysm. This review critically evaluates major recent articles on aortic aneurysms, emphasizing radiographic findings which have a high degree of reliability and cautioning the reader about nonspecific signs which have been reported. Each type of aortic aneurysm is described in detail, stressing criteria which allow the radiologist to be as specific as possible in determining the etiology and extent of the aneurysm.

Aneurysm, Infected↗

PubMed1975

[The angiographic demonstration of a primary sarcoma of the pulmonary artery].

Following the findings of a primary sarcoma of the pulmonary artery and its angiographic demonstration, a search was made of the literature for this rare condition. Angiography is usually performed because a pulmonary embolism is suspected. It is best to inject contrast medium into the right atrium or ventricle. If an unusually large defect is demonstrated in the pulmonary artery, a primary malignant neoplasm should be considered in the differential diagnosis, particularly if the mass projects into the outflow tract of the right ventricle.

Aged↗

PubMed1975

A variation of the technique of transfemoral pulmonary arteriography.

A variation of the transfemoral pulmonary artery catheterization technique utilizes a commercially available pigtail catheter with high torque control. A single 90 degree curve is added to this catheter prior to the examination. This resulted in successful catheterization of the right and left pulmonary arteries. No catheter tip deflector system or other special equipment was needed. There have been no complications.

Angiography↗

PubMed1975

Staging laparotomy in non-Hodgkin's lymphoma.

In 57 patients with non-Hodgkin's lymphoma, a clinical, radiographic, scintigraphic and pathological correlative study showed the following results: (1) the inferior venacavagram, lymphangiogram and gallium-67 scan have a low sensitivity in detecting lymphoma: their accuracy is high when the findings are interpreted as abnormal (93%, 83% and 80% respectively), but low when they are interpreted as normal (47%, 67% and 58% respectively); (2) the clinical evaluation of spleen and liver is unreliable; (3) the incidence of lymphocytic lymphoma in the para-aortic-iliac nodes is high; (4) a pattern of involvement by contiguity and a predilection for the spleen were observed in lymphocytic lymphoma; (5) in lymphocytic lymphoma there is no liver involve without concomitant splenic involvement; (6) no definite pattern of spread could be seen in histiocytic lymphoma; (7) surgical staging changed the classification of the lymphoma in 56% of cases, 46% being reclassified to a more advanced stage; (8) surgical staging significantly improves the assessment of the stage of disease and therefore permits accurate treatment planning.

Adolescent↗

PubMed1974