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Biomedical subjects

S Y Han

Publications and source records attributed to S Y Han.

126 records · Page 7Linked to original sources
PubMed1977

Cardiovascular involvement by invasive thymomas.

We have observed 74 cases of thymoma from 1968 to 1974. Six cases of invasive (malignant) thymoma presented in an unusual fashion with signs and symptoms of cardiovascular disease and superior vena caval syndrome. The clinical, pathological, and roentgenographic features of these cases are presented. The literature concerning cardiovascular involvement by thymoma is reviewed and discussed.

Adult↗
PubMed1977

New technique for pelvic venography during ascending phlebography.

A technique of pelvic venography making it possible to obtain satisfactory opacification of the iliofemoral segment of the pelvic veins consistently during ascending phlebography is described. The main features are the compression of the inferior vena cava with a compression band and balloon, and the use of a large amount of contrast material.

Humans↗
PubMed1977

Plain film findings in massive gastrointestinal bleeding.

The admixture of blood clots and air in the lumen of the stomach or colon produces a bubbly radiolucency on plain films of the abdomen in some patients with massive gastrointestinal bleeding. In 10 patients this radiographic sign served as a clue to the site of bleeding. It is postulated that recognition of this sign on preliminary scout films may facilitate location of the bleeding vessel.

Adult↗
PubMed1977

Intestinal infarction complicating low cardiac output states.

Nonocclusive mesenteric ischemia, leading into intestinal infarction, frequently complicates and causes the fatal outcome in otherwise treatable instances of low cardiac output states. Once intestinal necrosis occurs in these patients, the mortality is almost 100 per cent. A high risk group of patients in whom intestinal infarction occurs because of low cardiac output can be readily identified. A high index of suspicion for the occurrence of intestinal ischemia in these patients should facilitate recognition of the disease during its early stages. The disastrous results experienced by us and others warrant the use of more aggressive methods for the diagnosis and treatment of patients with this condition. A high index of suspicion in a recognizable group of patients observed by selective mesenteric arteriography affords a method for confirmation of the diagnosis of mesenteric vasoconstriction. Once the diagnosis is established, a patient management protocol program should be followed. Sustained infusion of papaverine into the mesenteric artery is useful in reversing mesenteric vasoconstriction. Additionally, the judicious use of celiotomy and intestinal resection, preceded and followed by the sustained infusion of papaverine into the superior mesenteric artery, offers hope for the survival of some of these patients and warrants further use.

Aged↗
PubMed1977

Angiographic diagnosis of leiomyomas of the small intestine.

Leiomyomas of the small intestine were demonstrated by visceral angiography in a 54-year old man with recurrent episodes of severe gastrointestinal bleeding over a five-year period. Angiographic features were irregular vessels within the tumor and early opacification of prominent feeding and draining vessels.

Humans↗
PubMed1976

Starch granulomatous peritonitis.

An unusual case of recurrent starch granulomatous peritonitis that presented as a long-standing paralytic ileus is described and the literature pertaining to this unusual entity is reviewed. The roentgenographic finding of severe prolonged paralytic ileus usually developing late in the post-operative period should suggest the possibility of this disease.

Aged↗
PubMed1976

Polyarteritis nodosa causing severe intestinal bleeding.

Rupture of an aneurysm of the mesentergic artery caused severe intestinal hemorrhage in a 50-year-old woman with polyarteritis nodosa. Abdominal angiography not only established diagnosis of polyarteritis nodosa by demonstrating multiple visceral aneurysms but also localized the site of bleeding.

Aneurysm↗
PubMed1976

Carcinoma of the urachus.

Characteristic roentgenographic and anatomical features of a mucinous adenocarcinoma of the urachus were observed in two patients. Both presented with a midline anterior abdominal mass in the supravesicular area. The tumor contained fine stippled calcification in one case. The cystogram demonstrated an irregular filling defect in the bladder dome in the other case. Ultrasonographic examination in one case was helpful in delineating the nature, size, and location of the mass in detail.

Abdominal Neoplasms↗
PubMed1976

Jefferson fracture of the atlas. Report of six cases.

Six cases of Jefferson fracture of the atlas are summarized. None had recognizable neurological signs that resulted from the injury when seen in the hospital. With conservative treatment, pain subsided and the fracture stabilized in a short period in all six patients. None of the patients underwent fusion of the cervical spine.

Adult↗
PubMed1976

Portal vein thrombosis resulting in portal hypertension in adults.

Attempting to elucidate the best way to treat adult patients with extrahepatic portal vein occlusive thrombosis, the experience with six such patients is analyzed. Portal vein thrombosis rarely occurs in adults but when it does, it frequently results in portal hypertension with its concomitant complications. Five patients had bleeding esophageal varices, two had massive refractory ascites. Their conventional liver function tests were not greatly altered. Thrombocytosis and history of thrombophlebitis were encountered in over half of the patients. Splenoportography is the best method to confirm the diagnosis preoperatively. In none of the six patients a decompressive portal systemic shunt could be performed although, it was attempted in five. Three patients survived. It appears that nonoperative management is the treatment of choice in these patients who can remain well for several years, however, when bleeding recurs gastric devascularization or even resective procedures are acceptable therapeutic alternatives.

Adult↗
PubMedDate not supplied

The CT findings in pseudomembranous colitis.

The authors present their experience with the CT appearance of pseudomembranous colitis in 6 patients. In addition to the previously reported thickened colon wall, pericolonic inflammation was also noted in 5 of the patients.

Adult↗
PubMedDate not supplied

CT evaluation of glucagonomas.

Seven patients with clinical features of the glucagonoma syndrome, including the characteristic rash, diabetes mellitus, and weight loss, were examined by CT. Computed tomography demonstrated a primary pancreatic tumor in all patients, and, in four, hepatic metastases were identified. The primary tumors, relatively large and solid in nature, varied in size from 2.5 to 6 cm in maximum diameter. The tumor was found in the tail of the pancreas in three patients and in the head of the pancreas in four. No obliteration of adjacent perivascular or peripancreatic fat planes was observed in any patient. Calcification was present in the primary tumor in three patients and in the hepatic metastases in one. All tumors that were studied angiographically were found to be hypervascular. In contrast to insulinomas, which are frequently quite small when clinically diagnosed, glucagonomas appear to attain considerable size prior to being clinically apparent. Thus, we conclude that CT ought to become the mainstay in the identification, localization, and staging of these tumors.

Adenoma, Islet Cell↗