No abstract available.

No abstract available.
Orthognathic Surgery*

We analysed the ultrasonographic findings in 46 cases of PID, examined atYyonsei Universtiy Severance Yondong Hospital from June 1983 to Dec. 1984. Among them, 29 cases of PID were well correlated with pathologic findings bysurgery or laparascopy. The results were as follows; 1. The age was ranged from 14 years to 57 years of age andthe majority was between 21 years and 50 years of age. 2. We evaluated the ultrasonographic findings of 46 casesunder the criteria of Swayne's classification. They are 67% in type II, 17% in type III and 4% in type I. Theremained is 11% in normal finding. 3. Among 29 cases pathologically proven,the ultrasonographic findings areclassifed to be 66% in type II, 21% in type III, 3% in type I and the remained is normal. Among type II PIDcases, tubo-ovarian abscess is 32%, pelvic abscess is 26% and pyosalphinx is 16%. The pelvic-peritoneal adhesionis demonstrated in 83% of 6 cases of type II lesion. 4. In 36 cases of PID, uterine mass formation is demonstrated and located unilaterally in 64%, associated fluid collection in 47% and bladder indentation in 36% was noted. The diameter of mass shadow is about 4.4cm of average, ranged between 2-9cm. The echogenecity was mixed in 64%, cysticin 31% and solid in 5% of mass lesion.
Abscess ; Classification ; Female ; Pelvic Inflammatory Disease ; Urinary Bladder

CT findings of twenty-four patients with adrenal gland tumors were analyzed to evaluate their location, size,shape, density etc. The post-surgical confirmation was made in 17 cases. The findings were as follows: 1. 4-10cmsized tumor messes were most common (42%). 2. Round or oval shaped forme were most common (59%). 3. Functionaltomors were 71% (17/24) including Cushing's syndrome of 10 cases, pheochromocytomas of 6 cases and aldosteronismof 1 case. 4. Abnormal adrenal glands were delineated in 88%(21/24), most effectively by CT. We concluded that CTwas the valuable study in the evaluation of the adrenal gland tumors and in the determination of surgicaloperation.
Adrenal Glands ; Cushing Syndrome ; Humans ; Pheochromocytoma

Pulmonary aspergilloma may usually demonstrate the classic "air-crescent sign" in the conventional radiograph. However, this lesion is often seen as a pulmonary nodule or is obscured by the surrounding scarred and fibrotic lung tissue, which may limit the value of the conventional techniques and hinder the diagnosis. We retrospectively analysed the plan film findings of 44 lesions of 40 patients and CT findings of 29 lesions of 26 patients with pulmonary aspergilloma with special emphasis upon the atypical manifestation. The cases with classic "air-meniscus sign" in conventional radiograph accounted for 50%, while 30%, presented with a pulmonary nodule and 20% were unrecognized forms due to surrounding parenchymal lesion. CT findings of 28 aspergillomas were analyzed according to the shape of the intracavitary space(space between the cavity wall and the fungal ball) and the fungal ball itself. The intracavity space showed "air-meniscus sign" (62%), filling cavity (28%), peripheral air bubble (3%) and high density due to hemorrhage (3%), in descending order of frequency, The shape of the fungal ball itself showed homogeneous low density mass (62%) and spongeform or irregular air bubble contained mass (34%), CT was more accurate than conventional radiograph in the diagnosis and evaluation of number and location of atspergilloma, particularly in the case of atypical presentaion and was useful to assess the associated disease and to predict postoperative outcome.
Cicatrix ; Diagnosis ; Hemorrhage ; Humans ; Lung ; Retrospective Studies

Constrictive pericarditis is caused by fibrosis of the pericardium leading to decrease in ventricular compliance. The diagnosis is often delayed due to nonspecific signs and symptoms. The authors experienced eight cases of constrictive pericarditis detected on chest CT scan while being treated for considerable length of time under the clinical impressions of intrathoracic tumor, tuberculous pleural effusion, liver cirrhosis, etc. Constrictive hemodynamics of these patients were confirmed by echocardiogram and cardiac catheterization. Among them five cases were due to tuberculosis. In four cases with pathologically proven tuberculous granuloma, the pericardium was markedly thickened and intensely enhanced. Associated pericardial effusion (n=3), and mediastinal lymphadenitis (n=3) were present, but pericardial calcifications were not seen. On the other hand, the fibrosis group (n=3) displayed mild pericardial thickening. All the three patients showed pericardial calcifications, mild or absent enhancement of pericardium, but no mediastinal lymphadenitis. The cardiovascular changes such as inferior or superior vena caval distension, left ventricular deformity, interventricular septum angulation, and biatrial enlargements were more severe than those in patients with active granuloma. In patients with constrictive pericarditis with nonspecific signs and symptoms, CT scan is very helpful in making the diagnosis and can give informations about the evolution of the disease.
Cardiac Catheterization ; Cardiac Catheters ; Compliance ; Congenital Abnormalities ; Diagnosis* ; Fibrosis ; Granuloma ; Hand ; Hemodynamics ; Humans ; Liver Cirrhosis ; Lymphadenitis ; Pericardial Effusion ; Pericarditis, Constrictive* ; Pericardium ; Pleural Effusion ; Tomography, X-Ray Computed ; Tuberculosis

Constrictive pericarditis is caused by fibrosis of the pericardium leading to decrease in ventricular compliance. The diagnosis is often delayed due to nonspecific signs and symptoms. The authors experienced eight cases of constrictive pericarditis detected on chest CT scan while being treated for considerable length of time under the clinical impressions of intrathoracic tumor, tuberculous pleural effusion, liver cirrhosis, etc. Constrictive hemodynamics of these patients were confirmed by echocardiogram and cardiac catheterization. Among them five cases were due to tuberculosis. In four cases with pathologically proven tuberculous granuloma, the pericardium was markedly thickened and intensely enhanced. Associated pericardial effusion (n=3), and mediastinal lymphadenitis (n=3) were present, but pericardial calcifications were not seen. On the other hand, the fibrosis group (n=3) displayed mild pericardial thickening. All the three patients showed pericardial calcifications, mild or absent enhancement of pericardium, but no mediastinal lymphadenitis. The cardiovascular changes such as inferior or superior vena caval distension, left ventricular deformity, interventricular septum angulation, and biatrial enlargements were more severe than those in patients with active granuloma. In patients with constrictive pericarditis with nonspecific signs and symptoms, CT scan is very helpful in making the diagnosis and can give informations about the evolution of the disease.
Cardiac Catheterization ; Cardiac Catheters ; Compliance ; Congenital Abnormalities ; Diagnosis* ; Fibrosis ; Granuloma ; Hand ; Hemodynamics ; Humans ; Liver Cirrhosis ; Lymphadenitis ; Pericardial Effusion ; Pericarditis, Constrictive* ; Pericardium ; Pleural Effusion ; Tomography, X-Ray Computed ; Tuberculosis

No abstract available.
Maxilla ; Orthognathic Surgery

PURPOSE: To compare the detectability and conspicuity of focal hepatic lesions among conventional spin echo techniqueniques and fast scanning techniqueniques in MR imaging. MATERIALS AND METHOD: 36 patients (24 men and 12 women, mean age of 54 years) with suspected liver mass on CT scan and US underwent MR imaging at 1.5 T system. Conventional spin echo T1, T2 weighted imaging, T2 weighted fast spin echo, T1 weighted fast multiplanar spoiled gradient recalled(FMPSPGR) imaging and Gd-enhanced FMPSPGR(Gd-FMPSPGR) were performed. 16 cases of hepatocellular carcinoma, 13 cases of hemangioma, 3 cases of metastasis, 3 cases of cholangiocarcinoma, and 1 case of lymphoma were included. Lesion conspicuity and number of detected hepatic masses were compared among the MR sequences. RESULTS: Overall 63 hepatic lesions were detected in 36 patients. Lesion detection' was 63(100%) with Gd-FMPSPGR, 62(98%) with non-enhanced FMPSPGR, 58(92%) with SE T2WI, 56(89%) with SE T1WI and 54 (86%)with FSE. For solid tumors, the contrast to noise ratio was greatest on Gd-FMPSPGR which was significantly higher than any other sequences. For hemangiomas it was greatest on SE T2WI and was significantly higher than SE T1WI. In the qualitative assessment, Gd-FMPSPGR was preferred for both solid mass lesion and hemangioma. FSE was inferior to SE T2WI for lesion detection and conspicuity without statistical significance. CONCLUSIONS: For the evaluation of focal hepatic lesions, breath-hold FMPSPGR with and without contrast enhancement may replace the conventional SE T1WI. Because FSE was inferior to SE T2WI when the later is used with respiratory compensation in some cases, it is difficult to replace the SE T2WI with FSE. But FSE, FMPSPGR and Gd-FMPSPGR images, when combined, may replace SE T1WI and SE T2WI.
Carcinoma, Hepatocellular ; Cholangiocarcinoma ; Compensation and Redress ; Female ; Hemangioma ; Humans ; Liver ; Lymphoma ; Magnetic Resonance Imaging ; Male ; Neoplasm Metastasis ; Noise ; Tomography, X-Ray Computed

No abstract available.
Child* ; Diabetes Insipidus* ; Eosinophilic Granuloma* ; Eosinophils* ; Humans ; Pituitary Gland*