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Biomedical subjects

S F Yu

Publications and source records attributed to S F Yu.

72 records · Page 4Linked to original sources
PubMed1978

Duodenal haematoma in association with coeliac axis stenosis.

Duodenal haematoma is now a well-established clinical entity. The aetiology, however, is not always clear. Trauma or bleeding due to anticoagulant therapy is the cause in most cases. It is suspected that unreported minor trauma may cause the remainder. A case is reported in which the pancreaticoduodenal circulation was markedly dilated and tortuous because of severe coeliac axis stenosis. It is suggested that no trauma is required in this situation to cause bleeding, which may be due to spontaneous repture of the smaller vasa recta.

Celiac Artery↗
PubMed1970

Malabsorption and subtotal villous atrophy secondary to pulmonary and intestinal tuberculosis.

A case of malabsorption and subtotal villous atrophy secondary to pulmonary and intestinal tuberculosis is reported. The patient was a 21-year-old Chinese girl who had active pulmonary tuberculosis, malabsorption, subtotal villous atrophy, atrophic gastritis with hypochlorhydria, ileal stricture, and a severe non-specific anaemia. There was also evidence to suggest protein-losing enteropathy. The association of subtotal villous atrophy and atrophic gastritis with tuberculosis is discussed. When antituberuclous therapy was instituted, improvement was marked not only clinically but also in the tests for intestinal absorption and in the jejunal mucosa.

Adult↗
PubMedDate not supplied

Gradient echo imaging of the lumbar spine.

Journal articles have presented pro and con views of gradient recalled echo (GRE) imaging of the lumbar spine, while it has been illustrated in textbooks that have advanced its diagnostic applicability. This paper reappraises GRE in light of evolving MRI technology. The conspicuity of anatomic structures on axial T1-weighted (T1W) spin-echo (SE) images were matched with T2 GRE images in 55 patients referred for evaluation of low back pain. Disc herniations were hyperintense on GRE images and readily separable from hypointense spondylophytes.

Adipose Tissue↗
PubMedDate not supplied

Granulopoiesis in newly diagnosed childhood solid tumors.

Granulopoiesis at the diagnosis of solid tumors has not been previously reported. The purpose of this study is to detect the changes of granulopoiesis of patients with solid tumors in different clinical stages. Granulocyte-macrophage colony-forming unit (CFU-GM) assays and liquid suspension cultures of bone marrow and peripheral blood were studied in 90 children with newly diagnosed solid tumors, including 5 benign tumors and 85 malignant tumors. The malignant tumors were categorized into nonadvanced, advanced, or marrow-invaded ones. Bone marrow from children with immune thrombocytopenic purpura and peripheral blood from adult volunteers were used as controls. Granulocyte-macrophage colony formation from bone marrow in benign or nonadvanced malignant tumor was not significantly different from that of controls. However, granulocyte macrophage colony formation from bone marrow in advanced or marrow-invaded malignant tumor was significantly less than that of controls or nonadvanced malignant tumor. Furthermore, the bone marrow of patients with advanced malignant tumor occasionally had a defective proliferation pattern and the bone marrow of those with marrow-invaded malignant tumor often had a defective proliferation pattern. Peripheral blood in marrow-invaded malignant tumor had colony and cluster formations in very wide ranges. As a malignant tumor progresses into advanced stages, irrespective of marrow infiltration, bone marrow CFU-GM levels may decline and defective granulopoiesis may occur.

Adolescent↗