No abstract available.
Carcinoma, Endometrioid*

No abstract available.
Cordocentesis*

The ultrasound is easily available and noninvasive diagnostic method without radiation hazard. We can approachto differential diagnosis of ovarian tumors by gray sale ultrasound which can display the detailed structure ofsoft tissue. In department of radiology, Korea Veterans Hospital, 27 cases of histologically confiremd ovariantumors collected from March 1984 to February 1986 were analized. The results were as follows: 1. The agedistribution was from 13 to 72 years. 2. The histologic diagnosis of ovarian tumors(27 cases) are as follows:teratoma(14), mucinous cystadenoma(8), mucinous cystadenocarcinoma(1), serous cystadenoma (2), Krukenburg tumor(1)and malignant thecoma (1). 3. The long diameter of ovarian tumors ranges from 4cm to 28cm. In these, mucinouscystadenoma is the largest and their size are as follows; less than 10cm; 25%, 11–15 cm; 12%, 16–20 cm; 25% andmore than 20cm; 38%. 4. The ultrasonographic findings of teratoma(14) were mainly cystic (8) or echogenic(6).There were echogenic solid components showing distal acoustic shadowing or fat-fluid level within cystic masses.Echogenecity of solid masses was heterogenous. 5. The ultrasonographic findings of mucinous cystadenoma&cystadenocarcinoma(9) were unilocular cystic (3) or multilocular cystic(6). There were variable amount ofechogenic component within cystic masses. 6. Those of serous cystadenoma(2) were unilocular cystic (1) ormultilocular cystic (1). 7. Krukenburg tumor(1) and Malignant thecoma(1) were heterogenously echogenic.
Acoustics ; Commerce ; Cystadenoma, Serous ; Diagnosis ; Diagnosis, Differential ; Hospitals, Veterans ; Korea ; Methods ; Mucins ; Shadowing (Histology) ; Thecoma ; Ultrasonography

No abstract available.
Acidosis* ; Aorta, Thoracic*

PURPOSE: The purpose of this study was to evaluate the CT findings of renal parenchyma infiltrated by pelvocalyceal transitional cell carcinoma. MATERIALS AND METHODS: This study included 28 patients in whom transitional cell carcinoma was dignosed after nephrectomy. CT findings were analyzed for the presence or absence of renal parenchymal infiltration; diagnostic criteria for this included parenchymal inhomogeneous low attenuation, ill-defined margin between the mass and renal parenchyma, or focal calyceal dilatation. To detect renal parenchymal infiltration by transitional cell carcinoma, we evaluated the frequency, sensitivity and specificity of each CT finding. RESULTS: Pathologic reports showed that renal parenchymal infiltration had occurred in 17 of 28 patients, (60.7%) ; on CT scans, renal parenchymal infiltration was seen in 15 of these 28 (53.6%). It two patients who did not show CT findings of renal parenchymal infiltration, pathologic examination revealed parenchymal invasion. All 15 patients who showed renal infiltration on CT had parenchymal inhomogeneous low attenuation (sensitivity: 88.2%, specificity : 100%), 13 showed ill-defined margin of the mass (sensitivity : 76.5%, specificity : 100%), and six showed focal dilatation of the calyx (sensitivity : 35.3%, specificity : 100%). CONCLUSION: In patients with pelvocalyceal transitional cell carcinoma, CT findings of parenchymal inhomogeneous low attenuation, ill-defined margin of mass, and focal calyceal dilatation suggest renal parenchymal infiltration, and these findings may be helpful in preoperative prognosis.
Carcinoma, Transitional Cell* ; Dilatation ; Humans ; Nephrectomy ; Prognosis ; Sensitivity and Specificity ; Tomography, X-Ray Computed

PURPOSE: Struma ovarii is ovarian tumor composed solely or predominantly of thyroid tissue or tumor in which hyperthyroidism results from ovarian thyroid tissue, and usually occurs in tandem with cystic teratoma. Ovarian cystic teratoma is radiologically easily diagnosed due to calcification or fat, for example, but the preoperative diagnosis of struma ovarii is often difficult due to rare characteristic features of thyroid tissue. Our purpose was to determine whether there were specific findings of struma ovarii which distinguished it from other ovarian tumors, and this involved analysis of its radiologic findings. MATERIALS AND METHODS: Using ultrasonography, computed tomography, and magnetic resonance imaging, preoperative radiologic findings of pathologically-proven struma ovarii in eleven patients were retrospectively evaluated for site, margin, nature (cystic, solid, mixed), contrast enhancement, septa, mural nodule, calcification, fat, and metastasis. These findings were compared with pathologic findings. RESULTS: All eleven tumors were unilateral, ten had smooth tumor margins, seven were mixed cystic and solid tumors (more than 70% of solid components in one tumor), and nine had regular septa. Three of four cystic masses (one unilocular, one bilocular and two multilocular cysts) had mural nodules. Calcifications were found in two tumors, and fat in one. Malignant change or metastasis was not found in any tumor. In one patient with hyperthyroidism due to struma ovarii, symptoms and signs of this subsided after removal of the tumor on salpingo-oophorectomy. CONCLUSION: Most cases of struma ovarii occurred unilaterally within ovarian teratomas in premenopausal women, and were mixed cystic and solid masses with smooth margins that are commonly enhanced on contrast enhanced scans. In one patient, hyperthyroidism was caused by struma ovarii. There were, however, no specific radiologic findings that were sufficiently typical to suggest the correct preoperative diagnosis of struma ovarii.
Diagnosis ; Female ; Humans ; Hyperthyroidism ; Magnetic Resonance Imaging ; Neoplasm Metastasis ; Ovarian Cysts ; Retrospective Studies ; Struma Ovarii* ; Teratoma ; Thyroid Gland ; Ultrasonography

Accurate prediction of cancer prognosis before the start of treatment is important since these predictions often affect the choice of treatment. Prognosis is usually based on anatomical staging and other clinical factors. However, the conventional system is not sufficient to accurately and reliably determine prognosis. Metabolic parameters measured by 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) have the potential to provide valuable information regarding prognosis and treatment response evaluation in cancer patients. Among these parameters, volume-based PET parameters such as metabolic tumor volume and total lesion glycolysis are especially promising. However, the measurement of these parameters is significantly affected by the imaging methodology and specific image characteristics, and a standard method for these parameters has not been established. This review introduces volume-based PET parameters as potential prognostic indicators, and highlights methodological considerations for measurement, potential implications, and prospects for further studies.
Fluorodeoxyglucose F18/diagnostic use ; Glycolysis ; Humans ; Neoplasm Staging ; Neoplasms/pathology/*radionuclide imaging ; *Positron-Emission Tomography ; Predictive Value of Tests ; Prognosis ; Radiopharmaceuticals/diagnostic use ; Tumor Burden

Nocardiosis refers to a locally invasive or disseminated infection associated with the Nocardia species. Most infections enter through the respiratory tract and then disseminate systemically. Rarely can a primary nocardial infection of the skin spread to contiguous structures or disseminate to other internal organs in immunocompromised hosts. We describe a 70-year-old woman who suffered from recurrent nodular skin lesions on her right hand, forearm and elbow following inoculation of a traumatic injury. Analysis of the purulent exudates obtained from the nodule revealed Nocardia species. After 20 days, a chest X-ray showed newly developed multiple nodules in both lungs. The diagnosis of systemic nocardiosis was established, and we treated this case with trimethoprim-sulfamethoxazole.
Aged ; Elbow ; Exudates and Transudates ; Female ; Forearm ; Hand ; Humans ; Immunocompromised Host ; Lung ; Nocardia ; Nocardia Infections ; Respiratory System ; Skin ; Thorax ; Trimethoprim, Sulfamethoxazole Drug Combination

Absorbable plates are used widely for fixation of facial bone fractures. Compared to conventional titanium plating systems, absorbable plates have many favorable traits. They are not palpable after plate absorption, which obviates the need for plate removal. Absorbable plate-related infections are relatively uncommon at less than 5% of patients undergoing fixation of facial bone fractures. The plates are made from a mixture of poly-L-lactic acid and poly-DL-lactic acid or poly-DL-lactic acid and polyglycolic acid, and the ratio of these biodegradable polymers is used to control the longevity of the plates. Degradation rate of absorbable plate is closely related to the chance of infection. Low degradation is associated with increased accumulation of plate debris, which in turn can increase the chance of infection. Predisposing factors for absorbable plate-related infection include the presence of maxillary sinusitis, plate proximity to incision site, and use of tobacco and significant amount of alcohol. Using short screws in fixating maxillary fracture accompanied maxillary sinusitis will increase the rate of infection. Avoiding fixating plates near the incision site will also minimize infection. Close observation until complete absorption of the plate is crucial, especially those who are smokers or heavy alcoholics. The management of plate infection is varied depending on the clinical situation. Severe infections require plate removal. Wound culture and radiologic exam are essential in treatment planning.
Absorbable Implants ; Absorption ; Alcoholics ; Causality ; Facial Bones* ; Facial Injuries ; Humans ; Longevity ; Maxillary Fractures ; Maxillary Sinus ; Maxillary Sinusitis ; Polyglycolic Acid ; Polymers ; Titanium ; Tobacco ; Wounds and Injuries

Laser photocoagulation is commonly used for the treatment of retinal neo-vascularization in ischemic retinal diseases. Transforming growth factor-beta2 is known to be produced by RPE cells after laser photocoagulation and to be related to both regression of neovascularization and acceleration of preretinal fibrosis. In this study, we investgated the safe extent of laser photocoagulation not promoting the fibrosis by measuring intravitreal TGF-beta2 released following treatment. In gray rabbit eyes, trans pars plana vitrectomies and laser photocoagulations[1/8, 1/4, 1/2 of the fundus]were performed. The each eyeball was enucleated and TGF-beta2 concentration was measured at 12, 24, 72 hours after laser photocoagulation. And fibrotic activity was observed by the subconjunctival injection of fibrocyte and TGF-beta2 [0.1, 1, 10ng/milliliter]. The results were as follows:1. When TGF-beta2 was injected subconjunctivally along with fibrocytes, fibrocytic activity was observed found at the concentration of 1 or 10ng/milliliter of TGF-beta2. 2.The intravitreal concentration of TGF-beta2 after laser photocoagulation to the 1/8, 1/4, 1/2 of fundus area were 0.05, 0.1, 0.2ng/milliliter respectively. From the above results, we suggest to treat limit the area of laser photo-coagulation to 1/8 of fundus area in order to prevent the retinal fibrosis.
Acceleration ; Fibrosis ; Light Coagulation ; Retinal Diseases ; Retinaldehyde* ; Transforming Growth Factor beta2 ; Vitrectomy