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Biomedical subjects

B S Jing

Publications and source records attributed to B S Jing.

At least 37 records · Page 2Linked to original sources
PubMed1982

The clinical significance of lympho-venous anastomoses in malignant disease.

Pedal lymphangiography has revealed lympho-venous anastomoses (LVA) in 62 patients with malignant disease. The LVAs were caused by obstruction of lymph flow and the obstruction was secondary to surgery in 23 patients, abnormal lymph nodes in 16 and a combination of surgery and abnormal nodes in 14. In 16 patients the LVA led to portal radicals giving opacification of the liver. Chest X-ray examination was normal in 41 patients. In 5 patients the initial chest examination was normal, but lung metastases or widening of the mediastinum developed 1-5 years later. Twelve patients had lung metastases or widening of the mediastinum at the time of the diagnosis of LVA. Clinical follow-up was available in 47 patients, of whom 30 died 1-60 months after diagnosis of LVA. It is concluded that the prognosis of a patient with LVA is poor, provided the cause is not a negative lymph dissection or an unrelated surgical procedure. In patients with pathological lymph nodes the presence of LVA indicate an advanced involvement. Relatively few patients with LVA had or developed lung metastases indicating that the biology of the tumor and the patient is more important than LVA to develop lung metastases.

Adult↗
PubMed1981

Computed tomography of the infratemporal fossa.

Conventional radiography and polytomography supply much information about primary and secondary tumors involving the infratemporal fossa. However, computed tomography is the preferable method with which to make definitive evaluations.

Adult↗
PubMed1981

The extremity soft-tissue lesion: a comparative study of ultrasound, computed tomography, and xeroradiography.

Twenty-five extremity soft-tissue lesions were evaluated by ultrasound (US), computed tomography (CT), and xeroradiography (XR). The lesion was detected by CT in 20 of 25 cases. In five cases, a soft-tissue tumor was not identified by CT due to small lesion size, isodensity, or the inability to distinguish scar tissue from recurrent tumor. Of the three modalities, the vascular bundle was most reliably defined by CT. In 20 of 25 cases, the lesion was detected by XR, but the size was accurately determined in only 13 cases.

Adolescent↗
PubMed1981

Carcinoma of the cervix: lymphangiography and computed tomography.

Twenty-four patients with carcinoma of the uterine cervix examined by lymphangiography followed by computed tomography (CT) were reviewed to assess the findings and their impact on management. The lymphangiogram was of value in detecting metastases in relatively small nodes, (less than 1.5 cm maximum diameter) and in differentiating metastases from reactive hyperplasia in the larger lymph nodes which were opacified. Although as yet unable to define alterations in the internal architecture of lymph nodes. CT detected masses of lymph nodes totally replaced by neoplasm or those not visualized by lymphangiography. In addition, the local extension of the primary neoplasm and distant metastases, such as to the urinary tract, liver, and skeleton, were readily demonstrated by CT. In advanced or recurrent disease, CT provided new information on 10 of 17 patients but resulted in a change in management for only one.

Adult↗
PubMed1981

Primary oat cell carcinoma of the larynx.

Oat cell carcinoma of the larynx is a rare and highly malignant tumor. Five cases are reported and the world literature is reviewed. Three of the five patients had distant metastases when they were first seen with hoarseness. The radiographic and histologic findings and treatment regimen for one patient are described, as well as correct recommendations for therapy of these tumors.

Adult↗
PubMed1980

Comparison of ultrasound and computed tomography in the detection of pancreatic malignancy.

A retrospective analysis was performed on 102 patients who were examined by both ultrasound (US) and computed tomography (CT) for known or possible carcinoma of the pancreas. In 38% of the patients, ultrasonography was unsatisfactory due to overlying interfering intestinal gas or ascites, whereas only 2% of CT studies were unsatisfactory due to technical considerations. In comparing the two modalities, CT was found to be more accurate (96% CT vs. 84% US), and this became more significant when nondiagnostic studies were considered in evaluating accuracy (95% CT vs. 54% US). Because of the findings in this analysis, CT is recommended as the initial diagnostic imaging modality for the evaluation of possible pancreatic neoplasm.

Adult↗
PubMed1980

Ultrasonographic patterns of hepatic lymphoma.

The hepatic sonograms of 443 patients with lymphoma were reviewed. Of these patients, 357 had nonHodgkin lymphoma, while 86 had Hodgkin disease. Sonography was able to detect disease in 5.2% of the total patient population. Disease was found in 5.8% of Hodgkin patients and 5.0% of nonHodgkin patients. The various sonographic patterns of disease are described. Hypoechoic and diffuse disease were seen in both types of lymphoma, while target and echogenic lesions were only seen in nonHodgkin lymphoma.

Diagnosis, Differential↗
PubMed1979

Computerized tomography in rhabdomyosarcoma of the head and neck.

Rhabdomyosarcoma of the head and neck may be treated with surgery, radiotherapy and chemotherapy or a combination thereof. Precise delineation of the full extent of the tumor in the head and neck is essential. Routine radiographs with hypocycloidal tomography and CT are complementary in defining the full extent of the lesion. Tomography is superior to CT scanning in demonstrating fine bone detail. Demonstration of the soft tissue tumor and its extensions is better seen on CT. The ability to discriminate differences more accurately in densities allows computerized tomography to appreciate better the integrity of the bone margins such as the thin walls of the sinuses.

Adolescent↗
PubMed1979

Lymphangiography in staging of carcinoma of the prostate: the potential value of percutaneous lymph node biopsy.

Bilateral pedal lymphangiography was performed in the staging of 208 patients with prostatic carcinoma. Forty-seven (23%) were found to have lymph node involvement, and 40 of these 47 had Stage C disease. Nine per cent of the Stage C1 patients (moderately advanced disease) and 37% of Stage C2 (massive carcinoma) had lymph node metastases. The distribution of the abnormal nodes was in continuity with the lymph node drainage from the prostate. The external iliac nodes were the most frequent site of metastases. Histological confirmation was obtained in 20 of the 40 positive Stage C2 cases. More recently, percutaneous aspiration biopsy of the opacified nodes was used to document the presence of metastic disease, thereby extending the value of lymphangiography.

Carcinoma↗
PubMed1979

Computed tomography diagnosis of mesenteric masses.

The computed tomographic findings of 30 mesenteric masses are presented. To delineate the mesentery accurately, oral contrast material must fill the entire small bowel. Of the masses, 23 were secondary to non-Hodgkin's lymphoma. These masses were irregular in shape and homogeneous in their tissue attentuation. Two of the 23 had a normal lymphangiogram in the upper paraaortic area. Both lymphangiography and CT were necessary to define the extent of disease in such patients. The six mesenteric metastases were irregular in shape. Four of these had areas of decreased attentuation eccentrically located within the mass which may be secondary to necrosis. One mesenteric cyst had a circular shape with smooth, sharp borders, and a centrally located area of decreased attenuation.

Adult↗
PubMed1979

Radiographic features of olfactory neuroblastoma.

Olfactory neuroblastomas are malignant, slowly growing neurogenic tumors originating from the olfactory mucosa of the nasal cavity. Fourteen patients with this tumor were evaluated and showed variable extension into adjacent structures such as the ethmoid and sphenoid sinuses, orbit, and anterior cranial cavity.

Adolescent↗
PubMed1978

Computerized tomography or paranasal sinus neoplasms.

Computerized tomography represents a new and valuable diagnostic tool to the otolaryngologist and head and neck surgeon in several ever-increasing aspects of his clinical practice. This report presents CT scans utilizing the E.M.I 5005 body scanner on patients with neoplasms of the paranasal sinuses presenting to the Head and Neck Service of The University of Texas System Center M. D. Anderson Hospital and Tumor Institute. Only patients undergoing surgical resection of such lesions are included so that actual operative and surgical pathological findings can be used for critical comparison of diagnostic information derived from polytomography and computerized tomography. Seven illustrative cases are presented. In general, computerized tomography has been found to be equal to polytomography in assessing bone destruction or involvement by tumor, and superior to polytomography in determining accurately the soft tissue extent of disease. CT scanning, however, has been found to have limitations in the delineation of soft tissue disease in areas of high contrast in tissue density, and in the evaluation of possible intracranial tumor extension in isodense, avascular lesions.

Aged↗
PubMed1978

Lymphangiography in patients with malignancy in a non-descended testicle.

Lymphangiography was performed on 23 patients with malignancy in non-descended testicles, 14 of whom had seminomatous and 9 non-seminomatous tumors. Lymph node metastases were shown by lymphangiography in 8 patients: 3 in lumbar nodes, 1 in iliac nodes alone and 4 in lumbar and iliac lymph nodes. Microscopic metastases were shown in lumbar nodes at retroperitoneal lymph node dissection in 2 patients when the lymphangiograms were negative. Iliac lymph node metastases are rare in testicular tumors but may be seen in tumors of non-descended testicles, alone or in combination with lumbar metastatic disease. This information is extremely important for the radiologist as well as the clinician in the management of patients.

Adult↗
PubMed1978

Radiographic findings of Ewing's sarcoma of the jaws.

The radiographic findings in eight cases of Ewing's sarcoma of the jaws are analysed in detail. Similar findings to those in peripheral skeletal involvement were demonstrated including: (a) permeative bone destruction, (b) periosteal reaction, and (c) extraosseous soft tissue mass. Specific to the jaws is the occurrence of dental displacement without destruction. The differential diagnosis of Ewing's sarcoma of the jaws is discussed in detail and illustrated.

Adolescent↗
PubMed1978

Laryngocele.

Laryngocele occurs more commonly than the literature indicates. Until recently, most were diagnosed clinically in the symptomatic patient. Although laryngocele is usually asymptomatic, greater numbers are being diagnosed because more patients suspected of head and neck cancer are undergoing sophisticated diagnostic radiographic procedures. Of 2,068 patients studied at M.D. Anderson Hospital and Tumor Institute for suspected laryngeal or hypopharyngeal cancer, 87 (4.2%) had laryngoceles. Three types of laryngocele are recognized: internal, external, and combined. They may be congenital or acquired and occur at any age. The coexistence of carcinoma and laryngocele has been discussed often enough in the literature to suggest a direct relationship; however, this series yielded no substantive evidence to implicate laryngocele as a precursor of carcinoma. The radiographic procedures currently used which readily establish the presence of laryngoceles are lateral soft tissue radiography of the neck, anteroposterior tomography of the larynx, and contrast laryngography.

Humans↗
PubMed1978

Malignant tumors of the larynx.

A rational choice of treatment for patients with malignant tumors of the larynx depends upon a thorough evaluation of the location, size, and extent of the lesion. Roentgenological examinations of the larynx are a valuable adjunct to clinical and laryngoscopic examinations. In interpretation of roentgenographic findings of malignant tumors of the larynx, a good knowledge of the anatomy of the head and neck, and of the nature, history, and routes of spread of the lesions of the larynx is essential. A correct interpretation needs careful scrutiny of all the roentgenograms; only a persistent abnormality should be regarded as significant. Many of the changes are subtle and require judicious elucidation. Others are quite straightforward and easily recognized. Constant attention to details and willingness to use wisely the different techniques are necessary if the maximum contribution to the diagnosis and management of malignant tumors of the laynx is to be achieved.

Glottis↗