Search PubMed⌕ Search

Biomedical subjects

G Hermann

Publications and source records attributed to G Hermann.

At least 163 records · Page 9Linked to original sources
PubMed1984

Radio-pathological correlation of occult tumor of the breast.

Small tumors of the breast, both benign and malignant, may remain clinically silent for some time before they become large enough to be palpable. In many cases the tumor is revealed on a mammogram that is performed only as part of a routine check-up. The spectrum of radiographic appearances of these "occult" tumors is described and correlated with histological findings. In a significant number of cases there is an overlap in mammographic appearance of these nonpalpable benign and malignant lesions and a biopsy is necessary. The techniques of spot localization are discussed, and the importance of this procedure prior to biopsy is stressed as an aid to the surgeon in localizing the abnormality. Results of studies and attempting to analyze and classify high risk radiographic patterns are reviewed. Reduction in mortality lies in detection of breast cancer in as early a stage as possible.

Breast↗
PubMed1983

Cardiothoracic emergencies associated with subclavian hemodialysis catheters.

Three adults have had life-threatening perforations of the vena cava or right atrium associated with the use of subclavian hemodialysis catheters. Subclavian hemodialysis catheters should be meticulously positioned in the superior vena-caval lumen so the tip does not tent the vena-caval wall. If a patient with a subclavian hemodialysis catheter experiences unexplained and refractory hypotension, especially during hemodialysis, cardiac or vena-caval perforation should be suspected.

Adolescent↗
PubMed1983

Extraskeletal Ewing sarcoma with computed tomography correlation.

Extraosseous Ewing sarcoma--a rare clinical entity--is described and the radiographic and histologic features discussed. Histologically this type of tumor may be differentiated from other soft tissue malignancies, but the ultrastructural glycogen content of the cytoplasm makes it frequently inseparable from the conventional osseous form of Ewing sarcoma. In spite of the presence of a huge paraosseal mass with bone erosion or periosteal new bone, computed tomography was the only preoperative modality able to provide evidence of non-involvement of the marrow cavity. However, histologic documentation is necessary to prove that one is dealing with a totally extraosseous Ewing sarcoma.

Adolescent↗
PubMed1983

Role of computed tomography in the diagnosis of infectious spondylitis.

Nineteen patients with infectious spondylitis were evaluated by computed tomography (CT) and the results were compared with conventional radiography. In each case the diagnosis was established by biopsy. The use of CT in evaluation of the extent of bone and soft tissue involvement as well as its role in differentiating inflammatory from noninflammatory destructive processes is discussed.

Adult↗
PubMed1982

The nature of allorosette-forming cells in rats.

ARFC appear in the spleen after transplantation of organs or tissues and immunization with nucleated cells between isohistogenic rat strains. The allorosette formation of rat spleen cells and T cells, isolated by an Ig-anti-Ig column, was examined. It has been demonstrated that 90% of ARFC are B cells and 10% are T cells. The allorosette phenomenon can therefore be considered an immune reaction concerning predominantly the B-cell system. Allorosette-forming T cells are discussed to be SD-antigen-recognizing cytotoxic T cells.

Animals↗
PubMed1982

Non-palpable tumour of the breast--radiological presentation.

During the period between 1977 and 1979, mammographic spot localizations were performed in 52 patients for evaluation of suspected occult neoplasms. Twenty-eight patients were found on biopsy to have a malignancy; on the remaining 24 patients the finding proved to be benign. The mammographic abnormalities were divided into two groups: (a) those associated with microcalcification and (b) those in which the abnormality was manifested by a small mass or localized distortion of the breast parenchyma. In many instances it was not possible to differentiate benign disease from malignancy on the mammogram. None of the 28 patients with malignant tumour had axillary node involvement at surgery.

Adult↗
PubMed1981

[Sudden death from natural causes among children of preschool and school age (author's transl)].

Sudden natural death the cause of which can only be found through obduction and further examinations, is an especially dramatic event between the ages of 3 and 18, probably the healthiest period of life. The number of such fatalities recorded in the Institute for legal Medicine, Würzburg University, was 0.6% (38 cases). The three main causes of death were: first, respiratory diseases, second, pathological changes of the brain its vessels and meninges, third, heart disease. Physical stress may have contributed to the time of death in 7 of the 38 cases.

Adolescent↗
PubMed1981

Patterns of oropharyngeal and fecal flora in patients with acute leukemia.

The oropharyngeal and fecal flora in 33 patients hospitalized with acute leukemia was examined. Normal flora predominated on admission. All patients received chemotherapy during the 48 hr after admission and at least one course of antibiotics during hospitalization. By the end of the study, 68% of the initial normal throat flora and 57% of the fecal flora had disappeared. The shift in flora was mainly due to the persistence or acquisition of aerobic gram-negative bacilli. Before antibiotics were given, the normal flora in both sites had already decreased in quantity, and increased numbers of aerobic gram-negative bacilli were found. After the first course of antibiotics, a further decrease in the total number of normal strains was observed. Information obtained from surveillance cultures was helpful for understanding the changes in flora but did not correlate with the microbiology of the infectious processes and could not be used to predict infection.

Acute Disease↗
PubMed1981

Computed tomography of the carpal tunnel: a radioanatomical study.

Cross-sectional anatomy of the carpal tunnel was evaluated by computed tomography (CT) on eight cadavers. Prior to CT, the wrists were marked and, subsequently, anatomical cross sections of the specimens were carefully made along the markers. The anatomical section planes closely correlated with the levels of the CT images. Photographs of one of the specimens were taken for comparative studies.

Autopsy↗
PubMed1981

Diagnosis of popliteal cyst: double-contrast arthrography and sonography.

One hundred consecutive patients who had trauma to the knee were examined by sonography and double-contrast arthrography to evaluate the presence or absence of popliteal cyst. In 58 cases both tests were negative, while in 15 both were positive. Each of those 15 patients had pain and/or a palpable mass behind the knee. In 27 remaining patients the arthrogram demonstrated a popliteal cyst that was not detected on the sonogram. None of the 27 patients complained of pain in the popliteal fossa or had a palpable mass in the area. The sonographic findings, however, showed good correlation with these clinical symptoms. This paper attempts to analyze these discrepancies and to evaluate the advantages and disadvantages of each method.

Diatrizoate Meglumine↗