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Biomedical subjects

S Ban

Publications and source records attributed to S Ban.

At least 127 records · Page 7Linked to original sources
PubMed1990

[Treatment of malignant lymphoma of the small intestine in aged patients over 70].

Case histories of three elderly patients with a malignant lymphoma of the small intestine are described. Case No. 1 involved a 80-year-old male with a diffuse malignant lymphoma of medium size that was associated with a jejunal perforation. On the 64th day after surgery, he died of heart failure during the course of chemotherapy. Case No. 2 was a 76-year-old male with a diffuse malignant lymphoma of medium size in the ileocecum. He left hospital after surgery had relieved his symptoms, although 8 months after he developed active pulmonary tuberculosis during the course of chemotherapy. Case No. 3 involved a 76-year-old female with a diffuse malignant lymphoma of the mixed cell type in the terminal ileum. She died of heart failure complicated by a pulmonary disease on the 36th postoperative day. The therapeutic results of treating the malignant lymphoma in these 3 aged patients were all unfavorable. Thus, it is felt that special care should be taken in treating aged patients with this kind of disease.

Aged↗
PubMed1990

[Retrospective study of tumor growth and progression in gastric leiomyosarcoma; a care report].

Presented is the case of a 58-year-old female who had been found to have a submucosal tumor of the stomach during a group medical examination 7 years earlier. Since that time, the proliferative course of the tumor has been regularly observed and the diagnosis of a gastric smooth muscle sarcoma was finally determined after an endoscopic examination performed this year. On the basis of X-ray photographs taken periodically, the mass gradually proliferated from 1.3 to 3.5 cm in diameter during the observation period of 2392 days. According to the doubling time (DT) calculation of Horai et al, the DT was 0.69. The proliferation in this case was very slow and this seems to be a characteristic of a highly differentiated smooth muscle sarcoma of the stomach.

Cell Division↗
PubMed1989

Epidermoid tumor presenting with trigeminal neuralgia and ipsilateral hemifacial spasm: a case report.

A case of epidermoid tumor presenting with a painful tic convulsif was reported. A 35-year old male with trigeminal neuralgia and ipsilateral hemifacial spasm was diagnosed as having an epidermoid by CT and metrizamide CT cisternography and the symptoms were completely eliminated after the operation. In this case, metrizamide CT cisternography was very useful for preoperative diagnosis by demonstrating the characteristic findings of the epidermoid. It should be taken into consideration that there are some cases with trigeminal neuralgia and/or hemifacial spasm whose symptoms are due to brain tumors.

Adult↗
PubMed1989

[Brain tumors associated with hemorrhage from tumors as their first manifestation].

Four cases of brain tumors associated with hemorrhage from tumors as their first manifestation were reported. These were malignant astrocytoma in two cases, brain metastasis of hepatocellular carcinoma in one case and skull metastasis of hepatocellular carcinoma in one case. Clinical symptoms and sings were generalized convulsion, sudden onset of headache, vomiting and hemiparesis. It was difficult to confirm the diagnosis of brain tumors in such cases. Therefore it is important to perform follow-up plain and enhanced CT repeatedly and it is also important to make adequate biopsy of hematoma wall and surrounding tissue during operation.

Adult↗
PubMed1989

Monostotic fibrous dysplasia of the left parietal bone--case report.

A 14-year-old female presented with a hard, painless mass, 5 x 5 cm, in the left parietal region. Skull x-rays showed a radiolucent skull tumor with a sclerotic margin in the parietal region. Computed tomography revealed an intradiploic multilocular mass separated by bony trabeculae. The outer table had thinned and protruded outward. The inner table was also thin and protruded inward slightly. External carotid angiography revealed a faint tumor stain and feeding from the middle meningeal artery. Bone scintigraphy revealed abnormal uptake in the lesion. Total removal of the skull tumor and cranioplasty were performed. The histological diagnosis was fibrous dysplasia. Fibrous dysplasia within the cranial vault is often expressed as painless bulging without neurological symptoms. Surgery is recommended when neurological symptoms and/or cosmetic problems are present. Histological confirmation of the diagnosis is also important.

Adolescent↗
PubMed1989

[Application of isocyanate separating agent for acrylic resin].

The most widely used agents for separating acrylic resin from gypsum molds are the water-soluble alginates, which produce a very thin water- and organic solvent-insoluble calcium alginate film on the gypsum surface. In the present study, a new type of separating agent, an isocyanate type coating agent, was developed and it's properties were investigated. This coating agent is composed mainly of trimethylol-propane-tolylenediisocyanate and ethyl-acetate, with a small amount of bis-tributyl-tin oxide as catalyst. At first, a thin film was formed on the surface by application of the agent, and then alkyl-phosphate was applied to this film to ensure easy separation of the cured resins from the molds. The molds treated with this separating agent had a glossy, hard surface. The surface of the cured resins treated in this way was glossier and smoother than that of resin treated with the water-soluble alginates.

Acrylic Resins↗
PubMed1989

[Color and discoloration of dental alloys with low noble metal content].

Diffused reflectance of dental casting alloys with low noble metal content by the spectrophotometer with an integrating sphere was used to determine the color of the alloy and the tarnish in 0.1% Na2S solution, to study whether or not the tarnish can be affected by the nobility and the microstructure of the alloy. The alloys which had a high atomic ratio of Au + Pt + Pd + In + Zn to Ag had higher tarnish resistance. However the alloys which had high content of In showed two phases, but these alloys had high tarnish resistance. This suggests that alloys which have only a small difference of nobility between the compound and the matrix, and in which the low tarnish resistance area is small, may have a high tarnish resistance.

Color↗