CT scans of 21 patients(intrathoracic goiter=7. Castleman disease=6, pulmonary carcinoid tumor=3, parathyroid adenoma=1, thyroid carcinoma=1, paraganglioma=1, benign pleural mesothelioma=1, sclerosing hemangioma=1) with mediastinal tumors that are known to be enhanced with intravenous injection of contrast media, were studied retrospectively to investigate the enhancing capabilities f those tumors and to describe their CT findings. The degree of enhancement was estimated by visual inspection with a grading system. All but one case of cystic parathyroid adenoma showed enhancement on post-contrast scan. The degree of enhancement was not helpful in differentiating these tumors. Characteristic location and pattern of tumor extension were found in cases of intrathoracic goiter, parathyroid adenoma, thyroid carcinoma and paraganglioma. Calcifications were found in intrathoracic goiter(5/7). Castleman disease(2/6). Pulmonary carcinoid(1/3), thyroid carcinoma. Necrotic low-attenuation areas were in intrathoracic goiter(7/7), parathyroid adenoma, thyroid carcinoma and paraganglioma. In conclusion, mediastinal tumors that are known to be enhanced in the literature were enhanced with rare exception, and if we consider the predilection site of those tumors, the scope of differential diagnosis can reasonably be narrowed.
Carcinoid Tumor ; Contrast Media ; Diagnosis, Differential ; Goiter, Substernal ; Injections, Intravenous ; Paraganglioma ; Parathyroid Neoplasms ; Retrospective Studies ; Thyroid Gland ; Thyroid Neoplasms ; Tomography, X-Ray Computed

Intrahepatic stones are frequently associated with recurrent pyogenic cholangiohepatitis and complete surgical removal of the stones is almost always difficult because of the large number of stones and associated bile duct strictures. One hundred and seventy-nine patients with retained intrahepatic stones underwent percuttaneous stone removal utilizing a preshaped angulated catheter and a Dormia basket under fluoroscopy with a combination of techniques including irrigation-suction. crushing of large stones. balloon dilatation of strictures and extracorporenal shock wave lithotripsy. The procedure was performed through a mature T-tube tract (177 patients) and a mature transhepatic tube tract (two patients). Stones were exclusively intrahepatic in 130 patients. whereas 49 patients also had stones in the common bile duct. In 91 (50.8%) of 179 patients. the stones were completely removed and in 36 (20.1%) patients most of the stones were removed. The overall success rate was 70.9% ngulation deformity. stricture of bile ducts and impacted stones were the factor most often responsible for failure, No significant complications were observed. Fluoroscopicalyy-guided percutaneous interventional procedures with a preshaped angulated catheter is an useful complementary procedure to surgery for patients with intrahepatic stones. the major benefits of an individually fitted angulated catheter are its safety and easy access to small peripheral bile ducts.
Bile Ducts ; Catheters* ; Common Bile Duct ; Congenital Abnormalities ; Constriction, Pathologic ; Dilatation ; Fluoroscopy ; Humans ; Lithotripsy ; Shock

Purpose: Hematuria and proteinuria have various causes and consequential outcomes in children. Immunosuppressants are needed in some children with biopsy-proven glomerulonephropathy but have many adverse effects. Since the clinical practice patterns of Korean pediatric nephrologists are diverse, we surveyed their opinions. Methods: Using a clinical vignette, the survey was emailed to all Korean Society of Pediatric Nephrology members. The questionnaires included diagnosis, examination, medications, and dietary recommendations for patients with hematuria and proteinuria. Results: A total of 32 clinicians (5.48%, 22 pediatric certificated nephrologists) responded to the survey. Most responders (87.5%) suspected immunoglobulin A nephropathy, and 68.8% replied that kidney biopsies were a diagnostic tool. Renin-angiotensin system inhibition (62.5%) or steroids (18.8%) were selected as the treatment. Salt and protein intakes were usually encouraged as dietary reference intakes (34.4% and 65.6%, respectively). Conclusions Children with abnormal urinalysis have various causes, treatments, and prognoses. As treatments such as immunosuppressants can have many adverse effects, it is necessary to confirm an accurate diagnosis and indications of treatments before starting the treatment. Recommendations for a diet should not hinder growth.

PURPOSE: Many authors reported about the post-traumatic nasal aesthetic complications. However, the studies for functional or intranasal complications are not enough yet. We identified relatively high prevalence of nasal obstruction and olfactory dysfunction in nasal synechiae, and the synechiae formation was a frequently occurred after the nasal bone reduction. And then, the aim of this study is to identify the usefulness of the treatment of intranasal synechiae. METHODS: We reviewed the data from 10 patients with symptomatic intranasal synechiae from June 2007 to June 2009. We enforced evaluation with preoperative CT in all patients but postoperative CT within complicated patients. We studied 10 patients with intranasal synechiae who had persistence postoperative symptoms. We studied the patients who were operated by removal of synechiae and ancillary surgical treatments in the last two years. RESULTS: In the previous report, the incidence of intranasal synechiae was 15%(n=62) and symptomatic synechiae was 16%(10/62). We classified the nasal bone fracture according to Stranc classification. In this paper, the incidence of treated intranasal synechiae was 13%(2/15) in Frontal Impact(FI) Type I, 11%(2/18) in FI Type II, 100%(2/2) in FI Type III, 0%(0/2) in Lateral Impact(LI) Type I, 25%(3/12) in LI Type II, and 33%(1/3) in LI Type III, respectively. After removal of synechiae, all patients improved nasal obstruction and little improved olfactory disturbance. CONCLUSION: Simple removal of synechiae by scissors improved postoperative symptoms and complications such as nasal obstruction and olfactory dysfunction. After removal of synechiae, all patients improved nasal obstruction, however, little improved anosmia. So, we thought that olfactory dysfunction may result in many intranasal factors. First of all, education of delicate procedure regarding this subject should be empathized accordingly.
Humans ; Incidence ; Nasal Bone ; Nasal Obstruction ; Nose ; Olfaction Disorders ; Prevalence

PURPOSE: The two major concerns in skin grafting are poor color match in the recipient site and the donor site morbidity. And, glabrous skin on the palmar aspect of the hands and plantar aspect of the feet attributes define the skin on the palm and fingers sole as functionally and aesthetically different from skin on other parts of the body. When there is a glabrous skin defect, it should be replaced with similar skin to restore function and aesthetics. The palmar crease areas were used to minimize these problems. The purpose of this study is to present the precise surgical technique of the full thickness skin graft using distal palmar and midpalmar creases for aesthetic better outcome for hand injuries. METHODS: From May 2006 to April 2010, 10 patients with 11 defects underwent glabrous full thickness skin grafting of finger defects. Causes included seven machinery injuries, two secondary burn reconstructions, and one knife injury. Donor sites included ten glabrous full thickness skin graft from the distal palmar crease and one from the midpalmar crease. RESULTS: Follow-up ranged from 3 months to 24 months. All glabrous skin grafts demonstrated complete taking the recipient sites and no incidence of the complete or partial loss. The donor site healed without complications, and there were no incidences of significant hypopigmantation, hyperpigmentation, or hypertrophic scarring. CONCLUSION: The important aspects of this method involve immediate return of glabrous skin to the defect site and restoration of the recipient site's crease by simple primary closure from adjacent skin. The glabrous skin of the palm provides the best tissue match for the reconstruction of the hands, but only a limited amount of tissue is available for this purpose. Full thickness skin grafting using palmar crease of the defects is the ideal way of reconstructing glabrous skin to restore both function and aesthetics and minimize donor site morbidity.
Burns ; Esthetics ; Fingers ; Follow-Up Studies ; Foot ; Hand ; Humans ; Hyperpigmentation ; Incidence ; Skin ; Skin Transplantation ; Tissue Donors ; Transplants

BACKGROUND: Perfusion scintigraphy with dipyridamole have been reported to be useful for diagnosis of coronary artery disease and the assessment of the presence and extent of myocardium at ischemic risk, especially in patients who can not undergo dynamic exercise testing. Dipyridamole, pharmacologic coronary vasodilator, also induces fall in blood pressure and rise in heart rate. The purpose of this study was to answer the question if dipyridamole induced peripheral hemodynamic responses were related to chest pain, ST changes on EKG, scintigraphic defect or extent of coronary stenosis. METHODS: Dipyridamole 99mTc-MIBI myocardial scintigraphy and coronary angiography on 43 subjects who were suspected to have coronary artery disease. The peripheral hemodynamic response was graded as absent(group 0) if there was a < or =10mm fall in systolic blood pressure (SBP) and/or < or =10 beats/min rise in geart rate(HR) ; moderate(group 1) if there was >10 but < or =20mm fall in SBP and/or >10 but < or =20 beats/min rise in HR ; and marked (group 2) if there was >20mm fall in SBP and/or >20 beats/min rise in HR. RESULTS: The overall diagnostic sensitivity and specificity for coronary artery disease of dipyridamole perfusion scintigraphy were 68%, 83% while per vessel sensitivity and specificity for coronary artery disease were 66%, 97%. The numbers of induced chest pain and ischemic ST changes among hemodynamic subgroups, were 40%, 40% in group 0, 33%, 27% in group 1 and 50%, 40% in group 2 without significant difference in each hemodynamic subgroups. Either the numbers of diseased coronary arteries or the numbers of patients demonstrationg reversible scintigraphic defects were not statically different among each subgroups. CONCLUSION: Although the peripheral hemodynamic response dose not always correlate with its central coronary effect but dipyridamlole 99mTc-MIBI myocardial perfusion scintigraphy is an useful test for diagnosis of coronary artery disease.
Blood Pressure ; Chest Pain ; Coronary Angiography ; Coronary Artery Disease* ; Coronary Stenosis ; Coronary Vessels* ; Diagnosis ; Dipyridamole* ; Electrocardiography ; Exercise Test ; Heart Rate ; Hemodynamics* ; Humans ; Myocardial Perfusion Imaging ; Myocardium ; Perfusion Imaging ; Sensitivity and Specificity

PURPOSE: After the RS (respiratory syncytial) virus, the influenza virus is the most common cause of childhood lower respiratory tract infection. We assessed the radiologic findings of childhood lower respiratory tract infection by the influenza virus. MATERIALS AND METHODS: A total of 105 pediatric patients (76 males and 29 females; mean age, 2.4 years) with symptoms of respiratory tract infection were examined between March 1997 and April 2000. Nasopharyngeal aspirates were obtained and influenza virus infection was confirmed by direct or indirect immunofluorescent assays. Peribronchial infiltration, hyperinflation, atelectasis, pulmonary consolidation, and hilar lymphadenopathy were evaluated retrospectively at simple chest radiography. RESULTS: Bilateral perihilar peribronchial infiltration was noted in 78.1% of patients (n=82), hyperinflation in 63.8% (n=67), atelectasis in 3.8% (n=4; segmental 50%, lobar 50%), and pulmonary consolidation in 16.2% [n=17; segmental 70.6% (n=12), lobar 29.4% (n=5)]. Hilar lymphadenopathy was noted in one patient in whom there was no pleural effusion, and subglottic airway narrowing in 12 of 14 in whom the croup symptom complex was present. CONCLUSION: The major radiologic findings of influenza virus infection were bilateral perihilar peribronchial infiltration and hyperinflation. In some patients, upper respiratory tract infection was combined with subgolttic airway narrowing. Atelectasis or pleural effusion was rare.
Croup ; Female ; Humans ; Influenza, Human* ; Lymphatic Diseases ; Male ; Orthomyxoviridae* ; Pleural Effusion ; Pulmonary Atelectasis ; Radiography ; Respiratory System* ; Respiratory Tract Infections* ; Retrospective Studies ; Thorax

The Russell-Silver syndrome (RSS) is a disease characterized by intrauterine growth retardation with preserved head circumference, facial dysmorphism and short stature. Reported renal and urinary manifestations of RSS include horseshoe kidney, renal tubular acidosis, hydronephrosis, ureteropelvic obstruction and vesicoureteral reflux. Here we report a case of end-stage renal disease associated with RSS, which, to the best of our knowledge, has not been reported yet.
Acidosis, Renal Tubular ; Fetal Growth Retardation ; Head ; Hydronephrosis ; Kidney ; Kidney Failure, Chronic ; Silver-Russell Syndrome ; Vesico-Ureteral Reflux

Posterior reversible encephalopathy syndrome (PRES) is a rare clinico-radiological syndrome that is characterized by an acute onset of headache, vomiting, visual abnormalities, confusion, and/or seizures and is typically accompanied with edema of predominantly posterior portions of the cerebral hemispheres. Here, we report a case of PRES with cerebral hemorrhage that occurred in a female pediatric patient with uncontrolled nephrotic syndrome. The patient's magnetic resonance imaging (MRI) studies showed asymmetric white matter abnormalities, cerebral hemorrhage, and restricted diffusion. After controlling her hypertension and nephrotic syndrome, her neurologic symptoms improved, and follow-up MRI findings revealed interval resolving of the white matter lesions.
Cerebral Hemorrhage* ; Cerebrum ; Child* ; Diffusion Magnetic Resonance Imaging ; Diffusion* ; Edema ; Female ; Follow-Up Studies ; Headache ; Humans ; Hypertension ; Magnetic Resonance Imaging ; Nephrotic Syndrome* ; Neurologic Manifestations ; Posterior Leukoencephalopathy Syndrome* ; Seizures ; Vomiting ; White Matter

Adequate fluid management is an important therapeutic goal of dialysis. Recently, bioelectrical impedance methods have been used to determine body fluid status, but pediatric reports are rare. To determine the accuracy of bioelectrical impedance methods in the assessment of body fluid statusof children undergoing hemodialysis (HD), 12 children on HD were studied. A multi-frequency bioimpedance analysis device (Inbody S10) and bioimpedance spectroscopy device (BCM) were used to evaluate fluid status. Fluid removal during a HD session (assessed as body-weight change, ΔBWt) was compared with the difference in total body water determined by each device (measured fluid difference, ΔMF), which showed strong correlation using either method (Pearson's coefficient, r = 0.772 with Inbody S10 vs. 0.799 with BCM). Bioimpedance measurement indicated fluid overload (FO; ΔHS greater than 7%) in 34.8% with Inbody S10 and 56.5% with BCM, and only about 60% of children with FO by bioimpedance methods showed clinical symptoms such as hypertension and edema. In some patients with larger weight gain Inbody S10-assessed overhydration (OH) was much smaller than BCM-assessed OH, suggesting that BCM is more relevant in estimating fluid accumulation amount than Inbody S10. To our knowledge, this is the first report on the use of body composition monitors to assess fluid status in Korean children receiving HD.
Body Composition ; Body Fluids ; Body Water ; Child ; Dialysis ; Edema ; Electric Impedance ; Humans ; Hypertension ; Methods* ; Renal Dialysis* ; Spectrum Analysis ; Weight Gain