We expierienced five cases of bilateral inferior vena cava for recent one year. We evaluated the CT findings of the cases and of dilated veins located in the left retroperitoneum (seven left gonadal, seven inferior mesenteric, and two left ascending lumber veins)in the viewpoints of the size, location and relation with the surrounding structures. Bilateral inferior vena cava (IVC) may be asymmetric and the left IYC may be smaller than other retroperitoneal veins with a round contour. The left lYC was located anterior to the spinal body and corresponded with contralateral vena cava in the anteroposterior plane. The gonadal vein was located anterior or anterolateral side of the psoas and always crossed the ureter. Most of the inferior mesenteric vein showed similar location to the opposite site of the vena cava in the anterolateral side of the psoas muscle, medial to the left ureter without crossing. The left ascending lumbar vein was similarly located to the left vena cava but dilated in a short segment. It is required to trace the vessel upward and downward and observe its continuity for correct differentiation. If it is impossible, some differential points suggested in the results of our study will be helpful for distinguishing them.
Gonads ; Mesenteric Veins ; Psoas Muscles ; Ureter ; Veins* ; Vena Cava, Inferior

To investigate MR artifacts induced by metallic implants, scans were obtained using both the ferromagnetic Drake lip and the non ferromagnetic Yasargil clip. Scan were taken through the area of clips using geometrical phantom. The MRI was performed by spin echo technique and gradient echo technique on both 2.0T and 0.5T MR unit. The luthors evaluated the nature and differences of artifacts in each sequence and parameter. Artifacts induced by both lips were noted in the direction of frequency encoding gradient, and consisted of region of signal loss abutted in one side by survilinear region of bright signal. Geometric distortion of image was marked in the Drake clip, out was minimal in the Yasargil clip under both 2.0T and 0.5T. Artifacts were more pronounced in the gradient echo technique than those of the spin echo technique on both 2.0T and 0.5T. Although there were no differences n the nature of artifacts induced by the Drake clip among each parameter in the spin echo technique under 2.0T, artifacts were slightly more pronounced on T2 weighted image under the 0.5T field, but no differences were found in the nature of artifacts induced by the Yasargil clip in the spin echo technique under, both the 2.0T and 0.5T fields. Marked artifacts were induced through the small area of the Drake clip which were included in the scan plane, but induced artifacts were small when a small area of the Yasargil clip was included in the scan plane. It seemed likely hat artifacts were slightly more pronounced in the 2.0T than the 0.5T field in both clips, but objective evaluation of the difference was difficult, In conclusion, these results can be an essential basis for the interpretation of MR images or patents with metallic inplants.
Aneurysm* ; Artifacts* ; Lip ; Magnetic Resonance Imaging* ; Magnets

We present a case of angiographically-confirmed transverse and sigmoid sinus thrombosis, image with MR, in a 20 year old male with a history of otitis media and maxillary sinusitis. T1-weighted image demonstrated an isosignal intensity mass with tubular-shaped low signal intensity in right transverse and sigmoid sinus. The thrombus had high signal intensity on T2-weighted image. The signal intensity of the thrombus on Gd-DTPA enhanced T1-weighted image was unusually high similar to that of transverse sinus. Although dural sinus thrombosis has a non-specific MR signal intensity, findings of MRI in this case may serve as an aid in future evaluation of venous thrombosis.
Colon, Sigmoid ; Gadolinium DTPA ; Humans ; Magnetic Resonance Imaging* ; Male ; Maxillary Sinus ; Maxillary Sinusitis ; Otitis Media ; Sinus Thrombosis, Intracranial* ; Thrombosis ; Venous Thrombosis

Lipoma is one of the unusual benign breast neoplasms and usually manifests at fatty breast of women at the age of 40 to 60. We experienced a case of large breast lipoma nearly replacing the whole left breast parenchymal tissue with mammographic finding of well-defined radiolucent mass, sonographic finding of hyperechoic mass with disorganized echopattern and computerized tomographic finding of very low attenuation mass, characteristic to adipose tissue, in a young woman of her dense breast.
Adipose Tissue ; Breast Neoplasms ; Breast* ; Female ; Humans ; Lipoma* ; Ultrasonography

Thanatophoric dysplasia is the most common lethal congenital chondrodysplasia with characteristic features of narrow thorax, short rib, severe platyspondyly, short bowed limbs and skull deformity, etc. It is not a hereditary disorder and there is usually no family history of dysplasia. We experienced a case of thanatophoric dysplasia at 38 weeks of gestation with antenatal sonographic and abdominal radiographic findings of small thorax, short bowed extremities with surrounding thickened soft tissues and marked platyspondyly. Soon atter delivery, the baby died and post-mortem radiographs showed the characteristic findings of thanatophoric dysplasia.
Congenital Abnormalities ; Extremities ; Humans ; Pregnancy ; Ribs ; Skull ; Thanatophoric Dysplasia* ; Thorax ; Ultrasonography

Male Breast cancer is an uncommon disease with an incidence of I per cent of all breast cancers. Male breast cancer usually appears as a small mass with well-defined contour which is eccentrically located in relation to the nipple on mammogram. We report a case of breast cancer in a 51-year-old man with mammographic appearance of large hyperdense mass with nipple inversion and axillary lymphadenopathy, gray-scale sonographic finding of homogeneous solid mass and mu Itiple tumor vessels with in the mass on color Doppler ultrasound.
Breast ; Breast Neoplasms ; Breast Neoplasms, Male* ; Humans ; Incidence ; Lymphatic Diseases ; Male ; Male* ; Middle Aged ; Nipples ; Ultrasonography

BACKGROUND: Generalized aggressive periodontitis (GAP) is a destructive periodontal disease that can develop in young age. Only a few cases of full mouth rehabilitation, using dental implants, have been reported in a patient with aggressive periodontitis. CASE DESCRIPTION: This clinical report describes the treatment procedures and results of full mouth rehabilitation in a patient with aggressive periodontitis. After all teeth were extracted, 6 implants were placed in the maxilla and mandible, respectively. Fixed detachable implant prostheses were made. The patient was satisfied with the final results. She was followed for 10 months postloading. CLINICAL IMPLICATION: For a long-term success, continuous maintenance care is critical, as the contributing factors of the disease (such as immune factors or periodontal pathogens) may not be controlled adequately.
Aggressive Periodontitis ; Dental Implants ; Humans ; Immunologic Factors ; Mandible ; Maxilla ; Mouth ; Mouth Rehabilitation ; Periodontal Diseases ; Prostheses and Implants ; Tooth

Acromioclavicular joint dislocations are frequently seen with industrial accident, sports activity and traffic accident. Various operative treatment modalities have been suggested. The purpose of this study is to compare the clinical results of two operative methods in young patients with acromioclavicular dislocation. The authors analyzed the clinical and radiological results of 30 patients with acromioclavicular dislocation, in whom 15 patients were treated by acromioclavicular reduction & fixation with K-wire(Phemister procedure) and 15 patients by acromioclavicular reduction & coracoclavicular fixation by cancellous screw with coracoclavicular ligament repair(Bosworth procedure) from March 1989 to September 1993 at Ansan Hospital, Korea University. They were followed up more than 12 months. The results obtained were as follows: 1. The difference of coracoclavicular distance compared with normal side after operation was 2.6mm in Phemister operations and 1.6 mm in Bosworth operations. And these differences were not changed at follow up significantly. 2. The complications were two K-wire migrations, one superficial infection, and one recurred gross deformity after pin removal in Phemister operations and two mild upward migrations of screw after Bosworth operations. 3. We obtained similar good results after Phemister and Bosworth operations. But less complications were visible, and anatomical reduction and early ROM exercise were possible after Bosworth operations.
Accidents, Occupational ; Accidents, Traffic ; Acromioclavicular Joint ; Congenital Abnormalities ; Dislocations ; Follow-Up Studies ; Gyeonggi-do ; Humans ; Korea ; Ligaments ; Methods ; Sports

Laparotomy performed for resection of hepatoma in 34 cases at Seoul National University Hospital for 3 .5years since Oct. 1978. Resection of hepatoma was done in 21 cases, ligation with or without canulation of hepaticartery was performed in 12 cases, and open and closure was made in 1 case. Angiographic findins were analyzed forresectability of hepatoma. The results of hte analysis were as follows; 1. Most reliable signs for resectablehepatoma were peripheral location and confinement in one hepatic lobe. Most reliable signs for non-resectablehepatoma were presence of tumor thrombus in portal vein, bilateral hepatic arterial feeding. 2. Less reliablesigns for resectable hepatoma were absence of portal vein invasion, less than 10cm in size and absence of findingsof liver cirrhosis. Less reliable signs for non-resectable hepatoma were right or left massive type. 3. Presenceof arteriovenous fistula, more than 10cm in size, and presence of findings of liver cirrhosis were no reliablecriteria for resectability of hepatoma. 4. Predictability for resectability with those reliable signs ofangiography was around 80%. 5. In addition to routine celiac angiography, oblique celiac angiography or superiormesenteric arteriography for portal vein opacification will be helpful in order to obtaine highly reliable signsfor resectability of hepatoma.
Angiography ; Arteriovenous Fistula ; Carcinoma, Hepatocellular ; Laparotomy ; Ligation ; Liver Cirrhosis ; Portal Vein ; Seoul ; Thrombosis

Background: Dimples on the cheeks can make the smile look more cheerful and attractive. Therefore, some people who do not have dimples may choose to undergo dimple creation surgery. Although dimple surgery is quite common, those desiring this procedure often lack information about it. Therefore, we conducted the present study to share our surgical tips and clinical experiences regarding safe dimple creation surgery. Methods: This study included 2,048 patients who underwent dimple creation surgery at our plastic surgery clinic between April 2010 and June 2014. These patients were selected from those who displayed no scarring from injury or tumor removal in the central face during the presurgical evaluation. Medical records were used to identify the age and sex of each patient, the location of dimple creation, any postoperative complications, reoperation, and the reason for reoperation. Results: Of the 2,048 patients, 159 (7.7%) underwent reoperation. The reason for reoperation was undercorrection in 78 cases (49.0%), disappearance of the dimple in 62 cases (38.9%), and overcorrection in nine cases (5.6%). Five patients (3.1%) had their stitches removed to eliminate the created dimple because they changed their minds, and five patients (3.1%) had their stitches removed because of infection. No patients reported complications after reoperation, and no other complications, such as hyperpigmentation or foreign body reaction, were observed. Conclusions Safe surgery with minimal complications and satisfying cosmetic results can be achieved via accurate knowledge of the relevant anatomy and its relationship with dimples, as well as appropriate surgical methodology.