Primary chondrosarcoma of the lung is an extremely rare tumor, and classified into two types, tracheobronchial & lung variety. The tracheobronchial variety is usually localized and lacked lymph nodal or distant spread with good prognosis. The lung variety tends to be more invasive associated with mediastinal lymph node involvement and thoracic metastasis. Authors experienced a case of primary chondrosarcoma, lung variety, of the lung involving left lower lobe with thoracic metastasis, not yet reported in Korean literatures. The patient was 55-year-old Korean female and chief complaints were cough, dyspnea & chest pain. Pathologically, it was confused with the metastatic adenocarcinoma in the first pleural fluid cytology. But bronchoscopic biopsy revealed typical morphology of chondrosarcoma with concentric growth encircling the bronchial tree and partial destruction of the bronchiols, suggesting its primary origin. Later pleural biopsy and aspiration materials during ches tube insertion revealed also metastatic chondrosarcoma. Radiologic studies were also campatible findings to chondrosarcoma. After admision, the patient underwent progressively downhill course & expired at 31st hospital day.
Female ; Humans ; Adenocarcinoma ; Biopsy ; Neoplasm Metastasis

No abstract available.
Lung Neoplasms* ; Lung* ; Neoplasms, Squamous Cell*

No abstract available.
Drug Therapy*

No abstract available.
Physiology* ; Prognosis* ; Pulmonary Disease, Chronic Obstructive* ; Respiratory Insufficiency*

BACKGROUND: Cardiopulmonary exercise test is a useful test for the evaluation of the cardiovascular and respiratory systems. Obese subjects have an increased resting metabolic rate (VO2) compared to non-obese subjects and the increase is more marked during dynamic exercise, which results in the limitation of maximal exercise in obese subjects. In this study, the influence of the obesity and fat distribution on the maximal exercise capacity were evaluated. METHODS: Maximal exercise capacity was represented by maximam maximum oxygen uptake and VO2 max in the cardiopulmonary test. Obesity, total fat content and abdominal obesity(waist to hip ratio, WHR) were measured by bioelectrical impedence method. Total of 42 volunteers(male 22, female 20) were evaluated. RESULTS: 1) Weight to height ratio(mean±SD) was 110%±14.9% in men and 100±11.1% in women. 2) Fat ratio(mean±SD) was 23.3±5.2% in men and 27.55±3.9% in woman. 3) Waist to hip ratio(mean±SD) was 0.85±0.04 in men and 0.8±0.03 in woman. 4) In men, VO2max/min/Kg was negatively correlate with obesity, fat ratio, and abdominal fat distribution. 5) In woman, VO2max/Kg was negatively correlated with obesity and fat ratio, but did not show significant relationship with abdominal fat distribution. CONCLUSION: Obesity was a limiting factor for maximal exercise in both men and women. Abdominal obesity was a limiting factor for maximal exercise in men but its implication to women needs further evaluation.
Abdominal Fat ; Exercise Test* ; Female ; Hip ; Humans ; Male ; Obesity ; Obesity, Abdominal ; Oxygen ; Respiratory System

The effect of the developed symmetric upper extremity motion trainer on the cortical activation pattern was investigated in three chronic hemiparetic patients using both fMRI and Fugl-Meyer test. The training program was performed at 1 hr/day, 5 days/week during 6 weeks. Fugl-Meyer tests were performed every two weeks during the training. fMRI was performed at 3T scanner with wrist flexion-extension in two different tasks before and after the training program: the only unaffected hand movement (Task 1) and passive movements of affected hand by the active movement of unaffected hand (Task 2). fMRI studies in Task 1 showed that cortical activations decreased in ipsilateral SMC but increased in contralateral SMC. Task 2 showed cortical reorganizations in bilateral SMC, PMA and SMA. Therefore, it seems that the cortical reorganization in chronic hemiparetic patients can be induced by the training with the developed symmetric upper extremity motion trainer.
Brain Injuries* ; Brain* ; Education ; Hand ; Humans ; Magnetic Resonance Imaging* ; Recovery of Function* ; Upper Extremity* ; Wrist

BACKGROUND: To evaluate airway responses and inflammation to antigen in Sprague-Dawley rat asthma model, we examined airway responses, serial histologic changes of the lung, and the relationship between airway responses and airway inflammation after antigen airway challenge. METHODS: Sprague-Dawley rats were sensitized with subcutaneous injection of 10 microgram ovalbumin(OA). Antigen airway challenges were done 14 ~16 days after sensitization and the sensitized rats were sacrificed 1h(AE), 6 ~8h(AL) and 1day(AD) after airway challenge, to examine the histologic changes of the lung. Airway responses were measured by body plethysmograph and recorded by enhanced pause(Penh) as an index of airway obstruction 6 ~8h after antigen challenges. Nonsensitized controls(10 rats) were also challenged with antigen and sacrificed 1 day later. Histopathologic examination of two trachea, large bronchi, small bronchi, and vessels was performed to evaluate the severity of inflammation and eosinophilic infiltration with H&E stain. RESULTS: In 17 of 20 rats(85%) in both groups, we observed airway responses. Among them, an early response(ER) in 15 rats(75%), an dual response in 5(25%), and an late response(LR) only in 2 rats(10%) displayed. There were no significant differences in the severity of inflammation among the trachea, large bronchi, small bronchi and vessels in all groups after antigen challenge(p>0.05) and between early and late responders. The significant eosinophil infiltration was observed in 5 rats(50%) of AL(p<0.05) compared with in AE and controls. Also, eosinophil infiltration was observed in higher trend in LR(57.1%) compared to ER(40%)(p>0.05). CONCLUSION: Sprague-Dawley rats sensitized with subcutaneous injection of OA showed a significant airway responses to antigen challenge. But antigen challenges caused a little eosinophil infiltration and no significant airway inflammation. Asthma model of Sprague-Dawley rats could be useful for antigen-induced airway responses, but this model has a limitation for the study of human asthma because of no significant pathologic change.
Airway Obstruction ; Animals ; Asthma* ; Bronchi ; Eosinophils ; Humans ; Inflammation* ; Injections, Subcutaneous ; Lung ; Ovalbumin* ; Rats ; Rats, Sprague-Dawley* ; Trachea

Sarcoidosis, a multisystemic disease of unknown cause characterized by the formation of noncaseat,ing granulomas, may involve any organ of the body. The most common sites of predilection are the lungs, lymph nodes, skin and eyes. Cutaneous sarcoidosis is seen in approximately 20-35% of patients with systcmic disease. Involvement of the central nervous system with sarcoidosis is relatively uncommon with an estimated incidence of only 3.5-5.0%. A 57-year-old male had been admitted to Department of Internal Medicine due to weight loss, polydipsia, polyuria, visual disturbance and bilateral hilar enlargement. He was diagnosed as sarcoidosis with diabetes inspidus by mediastinoscopic biopsy and a water deprivation test. On his first visit to dermatology he had several well-demarcated smooth-surfaced erythematous plaques on his forehead which had been there for 7 months. Histopathologically, many noncaseating epithelioid tubercles which are characteristic findings of sarcoidosis, were found in the dermis and subcutaneous tissue. We treated him with predniscilone 40 mg daily for 3 months and skin lesions markedly improved.
Biopsy ; Central Nervous System ; Dermatology ; Dermis ; Forehead ; Granuloma ; Humans ; Incidence ; Internal Medicine ; Lung ; Lymph Nodes ; Male ; Middle Aged ; Polydipsia ; Polyuria ; Sarcoidosis* ; Skin ; Subcutaneous Tissue ; Water Deprivation ; Weight Loss

No abstract available.
Histiocytoma, Malignant Fibrous* ; Lung*

PURPOSE: Assess the appropriate level of electrocardiography (EKG) education that should be incorporated into the curriculum of emergency medical technician (EMT) students. METHODS: Consensus by EMT professors and emergency medicine specialists was obtained using two rounds of the Delphi survey. The questionnaire consisted of 70 items; 12 related to demographic information, 8 related to general interpretation of EKG, 26 related to interpretation of arrhythmia, 20 related interpretations of structural anomaly, infarction and systemic disease, and 4 related to interpretation of EKG findings used for advanced cardiac life support. We considered consensus to be agreement of greater than 7 of 9 (66.7%). RESULTS: 59 and 24 subjects were included in the first and second rounds of the Delphi survey, respectively. The response rate was 59% for the first round and 40.7% for the second round. Of 70 items, 40 items came to a consensus by the panel. All items related to interpretation of EKG and advanced cardiac life support and most (10 of 12) items related to basic content were felt to be important by both EMT professors and emergency medicine specialists. However, for items related to arrhythmia and related to structural anomaly, infarction and systemic disease, less than half of the items examined were felt to be necessary in the curriculum of EMT students (12 of 26 and 6 of 20). CONCLUSION: We identified 40 items that should be included into the EKG curriculum of EMT students. These findings should be used to create more effective educational programs for EMT students.
Advanced Cardiac Life Support ; Arrhythmias, Cardiac ; Consensus ; Curriculum ; Delphi Technique ; Electrocardiography ; Emergencies ; Emergency Medical Technicians ; Emergency Medicine ; Humans ; Infarction ; Porphyrins ; Surveys and Questionnaires ; Specialization