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Biomedical subjects

B S Jing

Publications and source records attributed to B S Jing.

At least 55 records · Page 3Linked to original sources

Lymphangiography in the determination of the extent of metastatic carcinoma: the potential value of percutaneous lymph node biopsy.

In determining the extent of disease in patients with carcinoma, lymphangiography when read as positive has an accuracy of 90 to 95%. When considered negative 15 to 20% prove to have metastatic disease. the recent use of percutaneous transperitoneal aspiration biopsy of previously opacified lymph nodes has enhanced the value of lymphangiography. Eighty percent of the aspiration biopsies yield sufficient tissue for cytologic diagnosis.

Adult↗

Changes in the lymphatic dynamics after retroperitoneal lymph node dissection.

Lymphatic dynamics in the retroperitoneal space are altered after retroperitoneal lymph node dissection. Obstruction with or without visible collaterals is seen frequently. Lymphaticovenous communications and lymphocysts are also common findings. The immediate sequelae are of minor importance, although the mass effect of lymphocysts may be serious. The collateral pathways and lymphaticovenous anastomoses may result in the appearance of metastases in unusual sites.

Adolescent↗

A new radiological technique in evaluation of prosthetic fitting.

Xeroradiography is an excellent technique in evaluating the fit of extremity prostheses. Because of its inherent characteristics, xeroradiography can clearly demonstrate the stump-socket relationship. Consequently, the degree of contact achieved and attendant pressure problems, if any, can be precisely determined.

Amputation Stumps↗

Laryngeal tuberculosis.

Laryngeal lesions observed in patients with pulmonary tuberculosis are most likely tuberculous. Although tuberculosis and carcinoma may be indistinguishable clinically and radiographically, specific radiographic studies better delineate the lesion and may suggest its true etiology. Five cases of laryngeal tuberculosis referred to M.D. Anderson Hospital and Tumor Institute as carcinoma of the larynx are described and illustrated. In the acute exudative type, inflammatory disease was suspected, but in the chronic localized lesion, carcinoma was the primary consideration. The histologic diagnosis was established by biopsy.

Adolescent↗

Lymphangiography as an aid in staging bladder carcinoma.

Eighty patients with histologically proven carcinoma of the urinary bladder had pedal lymphangiography as part of their assessment for metastatic disease. Results were correlated with surgical findings within three months of the lymphangiographic interpretation in 49 patients. There were no false-positive lymphangiograms, and only five (10%) false-negative readings were recorded. The finding of positive lymphangiograms in 9% of patients with stage B disease, 16% of patients with stage C disease, and 57% of patients with a fixation of the tumor to the pelvic or abdominal wall emphasizes the value of the procedure in limiting unnecessary surgical exploration.

Diagnostic Errors↗

Xerotomography of pulmonary lesions.

Xerography in combination with tomography is a useful modality in evaluating pulmonary lesions. Comparison is made between this technique and conventional film tomography. Xerotomography is felt to be preferable although it requires considerably higher radiation exposure to the patient.

Humans↗

Influence of staging celiotomy in localized presentations of Hodgkin's disease.

Staging celiotomy was performed in 139 previously untreated patients with lymphogram negative Stage I and II Hodgkin's disease. Sixteen additional patients received definitive radiotherapy for symptomatic relief of upper torso disease prior to abdominal exploration. The overall incidence of positive abdominal findings for these two groups was 34.5% and 31.2%, respectively. Further analysis of the 139 previously untreated cases revealed notable differences in incidence of positive abdominal findings for stage, presentation, and specific histology. Stage I patients with upper cervical or inguinal presentations or a lymphocytic predominance classification had negative celiotomies, as contrasted with a 43% incidence of positive abdominal findings in patients with supraclavicular presentations. In Stage II disease, the incidence of positive findings was related to the status of the mediastinum. For mediastinal presentations, the incidence was 33.3%, as compared to 48% for nonmediastinal presentations. To date, the number of relapses in celiotomy Stage I and II patients has been low regardless of whether or not prophylactic irradiation was administered to the major lymph-node-bearing regions of the upper and lower torso. Of 9 patients with progression, extranodal spread occurred as the first evidence of new disease in 4 patients. The implication of this finding is considered in a discussion on the influence of staging celiotomy in the management of Stage I and II patients with Hodgkin's disease.

Abdominal Neoplasms↗

Lymphangiography in ovarian cancer.

Lymphangiography can be of assistance in pre-treatment staging and thereby influence management of patients with ovarian cancer. The distribution of lymph node metastases was related to the histologic type of ovarian neoplasm. Tumors of germ cell origin more frequently spread to para-aortic lymph nodes, while epithelial neoplasms of the ovary metastasized to the pelvic and para-aortic lymph nodes, apparently in continuity. In this series, lymph node metastasis from ovarian cancer was seldom associated with ascites.

Aorta, Abdominal↗

Roentgen examination of laryngeal cancer: a critical evaluation.

In the management of laryngeal cancer, roentgen examination is imperative in the evaluation of every lesion. The currently most commonly used roentgen techniques are lateral soft tissue roentgenography of the neck, frontal tomography of the larnyx, and contrast laryngography. Clinical application of these techniques depends upon the character and site of the lesion. Lateral soft tissue roentgenography of the neck can reveal tumor mass located mainly in the sagittal plane of the larynx. In addition, it is often relied upon for the detection of destruction of the thyroid cartilage. Frontal tomography is a static study of the larynx and usually demonstrates tumor mass in profile. Contrast laryngography allows a dynamic study of the larynx and is the most reliable roentgen technique for a precise delineation of the anatomical abnormalities and a clear evaluation of the functional alteration of the involved structures of the larynx. When used in combination, particularly lateral soft tissue roentgenography of the neck and contrast laryngography, these techniques yield invaluable information in the diagnosis of the laryngeal cancer.

Contrast Media↗