Explainable machine learning using perioperative serial laboratory results to predict postoperative mortality in patients with peritonitis-induced sepsis

Purpose@#Sepsis is one of the most common causes of death after surgery. Several conventional scoring systems have been developed to predict the outcome of sepsis; however, their predictive power is insufficient. The present study applies explainable machine-learning algorithms to improve the accuracy of predicting postoperative mortality in patients with sepsis caused by peritonitis. @*Methods@#We performed a retrospective analysis of data from demographic, clinical, and laboratory analyses, including the delta neutrophil index (DNI), WBC and neutrophil counts, and CRP level. Laboratory data were measured before surgery, 12–36 hours after surgery, and 60–84 hours after surgery. The primary study output was the probability of mortality.The areas under the receiver operating characteristic curves (AUCs) of several machine-learning algorithms using the Sequential Organ Failure Assessment (SOFA) and Simplified Acute Physiology Score (SAPS) 3 models were compared.‘SHapley Additive exPlanations’ values were used to indicate the direction of the relationship between a variable and mortality. @*Results@#The CatBoost model yielded the highest AUC (0.933) for mortality compared to SAPS3 and SOFA (0.860 and 0.867, respectively). Increased DNI on day 3, septic shock, use of norepinephrine therapy, and increased international normalized ratio on day 3 had the greatest impact on the model’s prediction of mortality. @*Conclusion@#Machine-learning algorithms increase the accuracy of predicting postoperative mortality in patients with sepsis caused by peritonitis.

A Bibliometric Analysis of the Field of Computer-Assisted Orthopedic Surgery during 2002–2021

Background@#This study aimed to investigate the characteristics of research articles and research trends in computer-assisted orthopedic surgery (CAOS) by conducting bibliometric analyses. @*Methods@#CAOS-related research articles published in international journals from 2002 to 2021 were collected using the PubMed database and analyzed using the bibliometric method. Their publication year, journal name, corresponding author’s country name, and the number of citations of all collected articles were noted. Contents of the articles were analyzed to evaluate the time point and anatomical site at which the digital technique was applied. Further, the 20-year period was divided into two halves of 10 years each to analyze the research trends. @*Results@#A total of 639 CAOS-related articles were identified. An average of 32.0 CAOS-related articles were published annually, with an average of 20.6 and 43.3 published in the first half and second half, respectively. Of all articles, 47.6% were published in the top 10 journals, and 81.2% were written in the top 10 countries. The total numbers of citations were 11.7 and 6.3 in the first and second halves, respectively, but the average annual number of citations was higher in the second half than in the first one.Articles on application of digital techniques during surgery were 62.3% and those on pre-surgery application were 36.9%. Further, articles in the knee (39.0%), spine (28.5%), and hip and pelvis (21.5%) fields accounted for 89.0% of the total publications. But the increase in publications in the said period was highest in the fields of the hand and wrist (+1,300.0%), ankle (+466.7%), and shoulder (+366.7%). @*Conclusions@#Over the last 20 years, the publication of CAOS-related research articles in international journals has grown steadily. Although the knee, spine, hip, and pelvis fields account for most CAOS-related research, research in new fields is also increasing. This study analyzed the types of articles and trends in CAOS-related research and provided useful information for future research in the field of CAOS.

Electrocardiographic Abnormalities following Syncope during Warm-up in a Professional Football Player: A Case Report / 대한스포츠의학회지

We describe the case of a 32-year-old male professional football player experiencing syncope during a warm-up ahead of a regular professional football league match. Syncope recovered spontaneously, but an electrocardiogram test revealed T-wave inversion and upward convex ST elevation. Subsequent echocardiogram, angiography, exercise stress test, cardiac magnetic resonance imaging, and gene analysis showed no abnormalities. The athlete had no recurrence of chest pain or syncope during the treatment period of about 4 weeks, and there was no recurrence of symptoms until 6 months after returning to sports.

Electrocardiographic Abnormalities following Syncope during Warm-up in a Professional Football Player: A Case Report / 대한스포츠의학회지

We describe the case of a 32-year-old male professional football player experiencing syncope during a warm-up ahead of a regular professional football league match. Syncope recovered spontaneously, but an electrocardiogram test revealed T-wave inversion and upward convex ST elevation. Subsequent echocardiogram, angiography, exercise stress test, cardiac magnetic resonance imaging, and gene analysis showed no abnormalities. The athlete had no recurrence of chest pain or syncope during the treatment period of about 4 weeks, and there was no recurrence of symptoms until 6 months after returning to sports.

Gemcitabine-Induced Hemolytic Uremic Syndrome in Pancreatic Cancer: A Case Report and Review of the Literature

Hemolytic uremic syndrome (HUS) is a rare thrombotic complication characterized by a triad of microangiopathic hemolytic anemia, thrombocytopenia, and acute renal failure. HUS may be caused by several different conditions, including infection, malignancy, and chemotherapeutic agents, such as mitomycin, cisplatin, and most recently, gemcitabine. The outcome of gemcitabine-induced HUS is poor, and the disease has a high mortality rate. This study reports a case of gemcitabine-induced HUS in a patient with pancreatic cancer in Korea.

Two Cases of Chemical Pneumonitis Caused by Hydrogen Sulfide / 결핵및호흡기질환

Chemical pneumonitis is an occupational lung disease that's caused by the inhalation of chemical substances. Its severity depends on the characteristics of the substances, the exposure time and the susceptibility of the patients. Hydrogen sulfide is not only emitted naturally, but it also frequently found in industrial settings where it is either used as a reactant or it is a by-product of manufacturing or industrial processes. Inhalation of hydrogen sulfide causes various respiratory reactions from cough to acute respiratory failure, depending on the severity. Two pharmaceutical factory workers were admitted after being rescued from a waste water disposal site that contained hydrogen sulfide. In spite that they recovered their consciousness, they had excessive cough and mild dyspnea. The simple chest radiographs and high resolution computed tomography showed diffuse interstitial infiltrates, and hypoxemia was present. They were diagnosed as suffering from chemical pneumonitis caused by hydrogen sulfide. After conservative management that included oxygen therapy, their symptoms, hypoxemia and radiographic abnormalities were improved.

Clinical Benefits and Complications of Cryotherapy in Advanced Lung Cancer with Central Airway Obstruction / 결핵및호흡기질환

BACKGROUND: The efficacy of the use of the interventional bronchoscope for palliation of patients with central airway obstruction has been established. In the palliative setting to alleviate central airway obstruction, the use of laser resection, electrocautery, argon plasma coagulation, photodynamic therapy and cryotherapy can provide relief of an airway obstruction. Cryotherapy is the therapeutic application of extreme cold for the local destruction of living tissue. Recently, this technique has been used for endoscopic management of central airway obstructions in Korea. We report the role and complications of the use of cryotherapy for airway obstructions in patients with advanced lung cancer. METHODS: We used a flexible cryoprobe for cryotherapy using nitrous oxide as a cryogen. The cryoprobe was applied through the working channel of a flexible fiberoptic bronchoscope. The temperature of the tip was approximately -89degrees C, and the icing time was 5~20 seconds. RESULTS: Four patients with a central airway obstruction from advanced lung cancer were treated with cryotherapy. Three of the four patients were treated successfully and the airway obstruction was improved after the cryotherapy procedure. Dyspnea, hypoxia and atelectais were improved in three cases. Two patients experienced complications-one patient experienced pneumomediastinum and the other patient experienced massive hemoptysis during the cryotherapy procedure. However, these complications resolved and did not influence mortality. CONCLUSION: This technique is effective and relatively safe for palliation of inoperable advanced lung cancer with a central airway obstruction.

The Effects of Ethyl Pyruvate on Lipopolysaccharide-induced Acute Lung Injury / 결핵및호흡기질환

BACKGROUND: Ethyl pyruvate (EP) is a derivative of pyruvate that has recently been identified by both various in vitro and in vivo studies to have antioxidant and anti-inflammatory effects. The aim of this study was to determine the effect of EP on lipopolysaccharide (LPS)-induced acute lung injury (ALI). METHODS: 5 weeks old, male BALB/c mice were used. ALI was induced by an intratracheal instillation of LPS 0.5mg/Kg/50microliter of saline. The mice were divided into the control, LPS, EP+LPS, and LPS+EP groups. In the control group, balanced salt solution was injected intraperitoneally 30 minutes before or 9 hours after the intratracheal instillation of saline. In the LPS group, a balanced salt solution was also injected intraperitoneally 30 minutes before or 9 hours after instillation the LPS. In the EP+LPS group, 40mg/Kg of EP was injected 30 minutes before LPS instillation. In the LPS+EP group, 40mg/Kg of EP was injected 9 hours after LPS instillation. The TNF-alpha and IL-6 concentrations in the bronchoalveolar lavage fluid (BALF), and that of NF-KappaB in the lung tissue were measured in the control, LPS and EP+LPS groups at 6 hours after instillation of saline or LPS, and the ALI score and myeloperoxidase (MPO) activity were measured in all four groups 24 and 48 hours after LPS instillation, respectively. RESULTS: The TNF-alpha and IL-6 concentrations were significantly lower in the EP+LPS group than in the LPS group (p<0.05). The changes in the concentration of these inflammatory cytokines were strongly correlated with that of NF-kappaB (p<0.01). The ALI scores were significantly lower in the EP+LPS and LPS+EP groups compared with the LPS group (p<0.05). In the EP+LPS group, the MPO activity was significantly lower than the LPS group (p=0.019). CONCLUSION: EP, either administered before or after LPS instillation, has protective effects against the pathogenesis of LPS-induced ALI. EP has potential theurapeutic effects on LPS-induced ALI.

A Case of Peripheral T-cell Lymphoma with Diffuse Bilateral Pulmonary Infiltration and Whole Body Rash / 결핵및호흡기질환

Primary pulmonary non-Hodgkin's lymphoma (NHL) account for 0.4% of all types of lymphoma. Most cases are of the mucosa-associated lymphoid tissue (MALT) type, low grade B-cell lymphoma, but cases of the T-cell type are rare. The radiological findings frequently show hilar or mediastinal lymphadenopathy, but lung parenchymal involvement is uncommon. Here, a case of a patient, who presented with fever, generalized erythema, diffuse pulmonary infiltration and pleural effusion, diagnosed as a peripheral T-cell lymphoma, is reported.

Clinical Effectiveness of Urinary Human Chorionic Gonadotropin Related Protein (hCGRP) Quantification for Diagnosis of Ectopic Pregnancy

We detected pregnancy related new molecule, human chorionic gonadotropin related protein (hCGRP) in the urine of a pregnant women by using a monoclonal antibody against the human chorionic gonadotropin (hCG). This study examined the effectiveness of urinary hCGRP quantification in diagnosing ectopic pregnancy. This study included 40 normal pregnant women and 25 patients with ectopic pregnancy. Patients' serum and urinary intact whole hCG (i-hCG) and hCGRP concentrations were measured using sandwich ELISA and the ratio of hCGRP to i-hCG was calculated. Statistical analysis was performed using statistical package for social sciences (SPSS) 10.0. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the cut-off value to discriminate ectopic pregnancies from normal intrauterine pregnancies. Urinary hCGRP and hCGRP/i-hCG ratio in ectopic pregnancy group (14 +/- 6.6 ng/mL, 4.6 +/- 1.9%, respectively) were significantly lower than those of normal pregnancy group (149 +/- 10.2 ng/mL, 29.7 +/- 1.9%, respectively; p<0.001). Based on ROC curve analysis, a cut-off point of urinary hCGRP/i-hCG ratio <16.2% discriminated between ectopic pregnancy and normal pregnancy with a sensitivity, specificity, positive predictive value and negative predictive value of 92.0%, 90.0%, 32.6%, and 99.5%, respectively. Urinary hCGRP/i-hCG ratio measurement may be effective in diagnosing ectopic pregnancy.

Minimal Change Nephrotic Syndrome in a Patient with Type II Diabetic Mellitus and Review of the Literature / 대한신장학회잡지

Diabetic nephropathy is a clinical syndrome characterized by persistent albuminuria, a relentless decline in GFR and raised arterial blood pressure, and usually diagnosed on clinical grounds without a renal biopsy. Their renal injuries are irreversible and they become eventually end-stage renal disease. Recently, it has been reported that proteinuria are also induced by other causes, and some of the renal diseases was treatable. The detection of non-diabetic renal disease in diabetic patients by renal biopsy has the prognostic and therapeutic importance. We report a case of type II diabetic mellitus with minimal change nephrotic syndrome, and no evidence of diabetic glomerulosclerosis.

Imaging Findings of the Brain Abnormalities in Acute Lymphoblastic Leukemia of Children during and after Treatment

PURPOSE: We evaluated the imaging abnormalities of the brain observed during and after treatment of acute childhood lymphoblastic leukemia. MATERIALS AND METHODS: The study group consisted of 30patients (male: female= 19:11; mean age, 64months) with acute childhood lymphoblastic leukemia during the previous ten-year period who had undergone pro-phylaxis of the central nervous system. Irrespective of the CNS symptoms, baseline study of the brain involving CT and follow-up CT or MRI was undertaken more than once. We retrospectively evaluated the imaging findings, methods of treatment, associated CNS symptoms, and the interval between diagnosis and the time at which brain abnormalities were revealed by imaging studies. RESULTS: In 15 (50% ; male : female=9:6 ; mean age, 77months) of 30 patients, brain abnormalities that included brain atrophy (n=9), cerebral infarctions (n=4), intracranial hemorrhage (n=1), mineralizing microangiopathy (n=2), and periventricular leukomalacia (n=3) were seen on follow-up CT or MR images. In four of nine patients with brain atrophy, imaging abnormalities such as periventricular leukomalacia(n=2), infarction (n=1) and microangiopathy (n=1) were demonstrated. Fourteen of the 15 patients underwent similar treatment; the one excluded had leukemic cells in the CSF. Six patients had CNS symptoms. In the 15 patients with abnormal brain imaging findings, the interval between diagnosis and the demonstration of brain abnormalities was between one month and four years. After the cessation of treatment, imaging abnormalities remained in all patients except one with brain atrophy. CONCLUSION: Various imaging abnormalities of the brain may be seen during and after the treatment of acute childhood lymphoblastic leukemia and persist for a long time. In children with this condition, the assessment of brain abnormalities requires follow-up study of the brain.

The Effects of Dialysate Sodium Concentration on Interdialytic Blood Pressure in Hemodialysis Patients / 대한신장학회잡지

Sodium concentration in the hemodialysis solution has been increased to prevent intradialytic hypotension after highly effective and shortened time hemodialysis(HD) was introduced in the late 70's. Many authors have pointed out that the high concentration in the dialysate sodium HD may be one of causes of increasing difficulty in the management of hypertension in HD patients. Sodium profiling hemodialysis (SPHD) is a modified form of high sodium dialysate HD. Even though sodium concentration is decreased progressively to the conventional level during the HD session, the time-averaged sodium concentration is usually higher compared to that of conventional HD. To evaluate the effect of dialysate sodium concentration on interdialytic blood pressure(BP) control, we conducted a cross over study. Eleven patients showing more than four episodes of intradialytic hypertension per month were studied(5 male, 6 female; 52+-13 years). All subjects underwent 8-week conventional HD(CHD)(dialysate Na+ 138mEq/L X 4 hour) and 8-week step-down SPHD(Na+ 150mEq/L X 2 hours> OR =140 X 1> OR =138 X 1) on the order of random assignment. At the end of each peiords, interdialytic 24-hour BP were measured by 24-hour Ambulatory BP monitor(ABPM : 90207, Space Labs, USA). 1) Time-averaged sodium concentration in dialy sate were 138mEq/L during SPHD and 144.5mEq/L during CHD. Pre HD serum sodium were not significantly different between two periods but post HD serum sodium and intradialytic increase of serum sodium significantly higher during SPHD period 138.1+/-0.5 v 141.1+/-0.6mEq/L, 0.5+/-0.6 v 2.6+/-0.4mEq/L, p<0.05). Dry weight was determined before the start of study and not changed throughout the study periods. Interdialytic weight gain and the amount of ulfrafiltration required to maintain the determined dry weight were significantly higher during SPHD period compared to those during CHD period(2.5+/-0.5 v 3.6+/-0.6 kg, 2.6+/-0.8 v 3.6+/-0.8kg, p<0.01). 2) The frequency of interdialytic hypotension was significantly reduced during SPHD period(23.9 v 15 %, p<0.01). But the frequency of symptoms requiring intervetion such as ultrafiltration adjustment or saline infusion was not different between two periods. Thirst during interdialytic period was significantly frequent during SPHD(37.8 vs 30% 138.1+/-0.5 v 141.1+/-0.6mEq/L, 0.5+/-0.6 v 2.6+/-0.4mEq/L, p<0.05). 3) Day-time, night-time and 24 hour mean systolic BP measured by 24 hour ABPM were significantly higher during SPHD period(149.2+/-4.8, 144.3+/-3.6, 146.6+/-4.1mmHg) than during CHD period(140.1+/-4.8, 133.0+/-4.1, 136.4+/-4.6mmHg, p<0.01). Day-time, night-time and 24 hour mean diastolic BP were also significantly higher during SPHD period(82.6+/-1.5, 84.1+/-1.4, 86.1+/-1.4mmHg) than during CHD period (78.7+/-2.2, 79.6+/-2.3, 81.8+/-2.2mmHg, p<0.05). 4) Systolic load and diastolic load by the criteria of higher than 150/90mmHg throughout the day increased significantly from 21.1+/-7.0 and 18.2+/-6.3% during CHD period to 41.7+/-9.9 and 28.4+/-4.7% during SPHD period. Diurnal difference was not different between the two periods but a significant number of dippers(36.4%) converted to nondipper during SPHD period. Our results shows SPHD increases interdialytic BP and its load. It also adversely alter diurnal variation and dipping status. The additional sodium load and an consequent excessive interdialytic weight gain aassociates with SPHD might contribute to this findings.

Effect of Initiaion of Hemodialysis and Continuous Ambulatory Peritoneal Dialysis on Blood Pressure Control in Patients with End-Stag Renal Disease / 대한신장학회잡지

Studies describing the effects on blood pressure control by hemodialysis(HD) or continuous amulatory peritoneal dialysis(CAPD) have yielded conflicting results with respect to 24 hour blood pressure control, diurnal variation and blood pressure loads. The aim of the study was to investigate the effect of beginning with HD or CAPD on blood pressure control, diurnal variation and blood pressure loads using ambulatory blood pressure monitoring(ABPM). Twen-ty-seven end-stage renal disease(ESRD) patients(12 on HD and 15 on CAPD) were enrolled into the study. Patients with cardiovascular diseases, erythro-poietin therapy, or severe edema were excluded. ABPM were performed two times before and after the initiation of dialysis. Mean duration of interval between pre- and post-dialysis ABPM were 17+/-4 days on HD and 13+/-3 days on CAPD. Daytime and nighttime were defined as the time from 6:00 AM to 10:00 PM and from 10:00 PM to 6:00 AM of the next day. Systolic and diastolic loads were defined as the percentage of the incidence of systolic and diastolic blood pressure over l% and 90mmHg. Dipper meaning the presence of normal diurnal difference were defined as the differences of daytime- nighttime mean arterial pressure more than 5mmHg. In HD patients, mean systolic and diastolic blood pressure and mean arterial pressure were significantly decreased after dialysis during 24 hour, day- time and nighttime. In CAPD patients, those were also significantly decreased after dialysis during 24 hour, daytime and nighttime(p<0.05). Diurnal differences were increased after CAPD(3.3+/-9.4 vs 5.4+/-6.8mmHg) but decreased after HD(4.3+/-6.2 vs 2.4+/-10.8mmHg) and the differences of diurnal difference between two groups were significantly different(+2.1+/-9.0 vs 1.9+/-8.4mmHg, p<0.05). Proportions of dipper among patients were increased from 16.7 to 66.7% in HD and from 33.3% to 60% in CAPD without statistical significance between two groups. Systolic and diastolic loads were significantly decreased after HD(from 75.0+/-38.0 to 37.5+/-43.8%, from 45.2+/-29.7 to 12.5+/-12.8%, respectively, p<0.05) and after CAPD(from 63.1+/-30,1 to 32.3+/-27.1%, from 43.4+/-36.2% to 12.2+/-16.9%, respectively, p<0.05). Systolic and diastolic loads of daytime and nighttime were significantly decreased after each dialysis modality except nighttime diastolic pressure load in HD. In conclusions, both HD and CAPD improve BP control in ESRD patients. CAPD has more benefit to control of diurnal variations in ESRD patients.

The Usefulness of CO2 Indirect Portography in Transjugular Intrahepatic Portosystemic Shunt(TIPS)

PURPOSE: To determine the usefulness of carbon dioxide(CO2) indirect portography during TIPS procedure. MATERIALS AND METHODS: We evalvated eight patients who had undergone TIPS due to variceal hemorrhage or ascites caused by portal hypertension. All patients but one with complete situs inversus underwent wedged right hepatic venography for visualization of the portal vein using CO2. For CO2 indirect portal venography, 50cc of CO2 was injected by hand without prior injection of a small amount of CO2. In three patients a 5-F angiographic catheter was wedged into the right hepatic vein, and in the other five a 9-F sheath from a Ring 's transjugular access set was adjunctively wedged into the right hepatic vein over the 5-F catheter. The time required for portal vein puncture was defined as the time between the indirect portal venography procedure and the first procedure after successful portal vein puncture. RESULTS: All patients successfully underwent TIPS without any immediate complication. The portal vein was visualized by CO2 in 7 of 8 patients (87.5 %). Two of three patients who underwent indirect portography with only a 5-F catheter wedging demonstrated opacification of the right portal vein; in the remaining patient the portal venous system was not visualized. Of the five patients who underwent indirect portography with an adjunctive 9-F sheath wedged in the right hepatic vein, four showed opacification from the peripheral to the main portal vein, and in the other, the only right peripheral portal vein was opacified. The mean time for portal vein puncture was 20.5 minutes. CONCLUSION: For visualization of the portal venous system during TIPS procedure, the use of CO2 indirect portography is feasible.

Posterior Mediastinal Panniculitis: A Case Report

Panniculitis is an inflammatory reaction of the subcutaneous fat. Erythema nodosum is its most common form and mesenteric panniculitis is well known. We describe a case of posterior mediastinal panniculitis confirmed by gun biopsy and describe the CT and pathologic findings. CT showed a paraspinal mass containing a small amount of fat in the posterior mediastinum.

A case of methemoglobinemia after ingestion of an aphrodisiac, later proven as dapsone

Methemoglobin (MetHb) is an oxidation product of hemoglobin in which the sixth coordination position of ferric iron is bound to a water molecule or to a hydroxyl group. The most common cause of acquired MetHb-emia is accidental poisoning which usually is the result of ingestion of water containing nitrates or food containing nitrite, and sometimes the inhalation or ingestion of butyl or amyl nitrite used as an aphrodisiac. We herein report a case of MetHb-emia after ingestion of an aphrodisiac, later identified as dapsone by gas chromatograph/mass selective detector (GC/MSD). A 24-year old male was admitted due to cyanosis after ingestion of a drug purchased as an aphrodisiac. On arterial blood gas analysis, pH was 7.32, PaCO2 26.8 mmHg, PaO2 75.6 mmHg, and bicarbonate 13.9 mmol/L. Initial pulse oxymetry was 89%. With 3 liter of nasal oxygen supplement, oxygen saturation was increased to 90-92%, but cyanosis did not disappear. Despite continuous supplement of oxygen, cyanosis was not improved. On the fifth hospital day, MetHb was 24.9%. Methylene blue was administered (2 mg/kg intravenously) and the patient rapidly improved. We proved the composition of aphrodisiac as dapsone by the method of GC/MSD.

MR Features of Bursitis around the Hip

PURPOSE: To determine the usefulness of MR imaging for differentiation between infectious and non-infectiousbursitis. MATERIALS AND METHODS: MR images of 16 patients (18 lesions) in whom bursitis around the hip had beendiagnosed were analyzed for homogeneity of the bursa, the presence of septation, the enhancement pattern, andassociated findings. Clinical data (symptoms and signs, laboratory data, aspiration of the bursa, and surgicalfindings) were available for correlation. The location of bursitis was trochanteric (n=9), ischiogluteal (n=5),iliopsoas (n=3), or ischiotrochanteric (n=1). RESULTS: Etiologies included infection in seven cases (3 pyogenic; 4tuberculous) and noninfecti-on in 11 (6 inflammation; 3 hemorrhage; 2 metabolic disease). In seven patients withinfectious bursitis, T1-weighted enhanced image revealed thick rim enhancement of the bursa (n=7) association withchanges in bone marrow signal intensity (n=2), bone erosion (n=2), and cellulitis (n=1). Of 11 cases ofnoninfectious bursitis, three demonstrated typical signal characte-ristics of hematoma within the distended bursa.In six of seven patients who underwent contrast-enh ancement, thick and thin peripheral enhancement of the bursawas noted. Bone erosion was found in one case of tuberculous bursitis and two of metab-olic disease. Internalseptation (n=4) and internal debris (n=3) were found in both infected and noninfected patients. CONCLUSION: MRimaging plays an important role in the diagnosis of bursitis around the hip. MR findings of thick rim enhancement,associated cellulitis, and changes in bone marrow signal intensity are suggestive of infectious bursitis.

Expression of proliferating cell nuclear antigen in lung cancer / 결핵

No abstract available.

A case of rifampicin induced thrombocytopenic purpura / 대한피부과학회지

No abstract available.