• Tuberculosis and Respiratory Diseases
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• v.74 no.2
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• pp.82-85
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• 2013

A 62-year-old man with a chronic cough presented with atelectasis of the left upper lobe on chest X-ray. Chest computed tomography showed an atelectasis in the left upper lobe with bronchial wall thickening, stenosis, dilatation, and mucoid impaction. We performed bronchoscopy and found a well-circumscribed mass on the left upper lobe bronchus. The mass was removed by flexible bronchoscopy using an electrosurgical snare and diagnosed with lipoma. An endobronchial lipoma is a rare benign tumor that can be treated by a surgical or endoscopic approach. We report the successful removal of endobronchial lipoma via flexible bronchoscopic electrosurgical snare.

• Investigative Magnetic Resonance Imaging
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• v.21 no.2
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• pp.97-101
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• 2017

We are reporting about a case of a rheumatoid nodule, beneath the ischial tuberosity, mimicking ischiogluteal bursitis. Rheumatoid nodules are frequently seen, at the subcutaneous soft tissues of repetitive mechanical irritation points, and prominent bones. There have been no reported cases of rheumatoid nodules, extending just beneath the ischial tuberosity bone. A 68-year-old woman with a seven-year history of rheumatoid arthritis, suffered for six months, from right buttock swelling and discomfort in seating. A cystic lesion postero-inferior to the ischial tuberosity, was noted in the MRI scan, which was thought to be ischiogluteal bursitis, because of its characteristic location and appearance. Histopathologic analysis and gross findings on the operation, revealed no evidence of bursitis.

• Journal of Chest Surgery
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• v.45 no.1
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• pp.60-64
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• 2012

A large cell neuroendocrine carcinoma (LCNEC) of the thymus is a very rare malignant tumor that has a very poor prognosis. The detailed clinical features of LCNEC are still unknown, including the long term prognoses and the definitive modalities of the treatment for LCNEC of the thymus. We are reporting 2 cases of an enlarged LCNEC of the thymus, both of which were diagnosed and treated by surgical resection followed by postoperative adjuvant chemoradiation therapy. Although recurrences and metastases of the LCNEC were noticed 1 and 4 years postoperatively for each case, aggressive surgical resection and adjuvant chemoradiation therapy may be helpful for a patient's long term survival.

• Korea Journal of Hospital Management
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• v.26 no.4
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• pp.59-66
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• 2021

Purposes: This study aimed to identify relevant factors that determine cancer surgery at a medium-sized general hospital where patients are diagnosed with cancer. Methodology: The study subjects were 1,530 patients diagnosed with cancer between November 2013 and October 2019 at a 400-bed general hospital located in the metropolitan area. Multiple logistic regression analysis was performed to identify the patient characteristics, cancer types, and characteristics of treatment experience of the study subjects, in addition to the determinants of cancer surgery in the hospital. Findings: Among 1,530 cases diagnosed with cancer, 353 cases (23.1%) were operated at the hospital where the cancer diagnosis was made. As determinants of surgery after a fist-time diagnosis at a general hospital, the likelihood of having surgery at the hospital, for colorectal cancer patients compared to stomach cancer patients (Odds Ratio=2.38), bladder and kidney cancer patients (Odds Ratio=1.79). According to the results of an additional survey conducted, it was found that important determinants of decisions on a hospital to receive cancer surgery were the kindness of the staff including doctors and nurses, and the trust in the medical skills and technique of the doctor. Practical Implication: The management of general hospitals should take note of the fact that it is important to establish proactive strategies for hospital management including strengthening the rapport between patients and medical institutions based on the kindness of medical staff (doctors and nurses) and staff, in addition to promoting cancer adequacy evaluation results and introducing one-stop systems.

• Experimental and Molecular Medicine
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• v.50 no.11
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• pp.13.1-13.15
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• 2018

Wound healing is delayed in diabetic patients. Increased apoptosis and endothelial progenitor cell (EPC) dysfunction are implicated in delayed diabetic wound healing. Melatonin, a major secretory product of the pineal gland, promotes diabetic wound healing; however, its mechanism of action remains unclear. Here, EPCs were isolated from the bone marrow of mice. Treatment of EPCs with melatonin alleviated advanced glycation end product (AGE)-induced apoptosis and cellular dysfunction. We further examined autophagy flux after melatonin treatment and found increased light chain 3 (LC3) and p62 protein levels in AGE-treated EPCs. However, lysosome-associated membrane protein 2 expression was decreased, indicating that autophagy flux was impaired in EPCs treated with AGEs. We then evaluated autophagy flux after melatonin treatment and found that melatonin increased the LC3 levels, but attenuated the accumulation of p62, suggesting a stimulatory effect of melatonin on autophagy flux. Blockage of autophagy flux by chloroquine partially abolished the protective effects of melatonin, indicating that autophagy flux is involved in the protective effects of melatonin. Furthermore, we found that the AMPK/mTOR signaling pathway is involved in autophagy flux stimulation by melatonin. An in vivo study also illustrated that melatonin treatment ameliorated impaired wound healing in a streptozotocin-induced diabetic wound healing model. Thus, our study shows that melatonin protects EPCs against apoptosis and dysfunction via autophagy flux stimulation and ameliorates impaired wound healing in vivo, providing insight into its mechanism of action in diabetic wound healing.

• Korean Journal of Radiology
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• v.22 no.5
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• pp.840-860
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• 2021

Imaging plays a key role in the diagnosis and characterization of thyroid diseases, and the information provided by imaging studies is essential for management planning. A referral guideline for imaging studies may help physicians make reasonable decisions and minimize the number of unnecessary examinations. The Korean Society of Thyroid Radiology (KSThR) developed imaging guidelines for thyroid nodules and differentiated thyroid cancer using an adaptation process through a collaboration between the National Evidence-based Healthcare Collaborating Agency and the working group of KSThR, which is composed of radiologists specializing in thyroid imaging. When evidence is either insufficient or equivocal, expert opinion may supplement the available evidence for recommending imaging. Therefore, we suggest rating the appropriateness of imaging for specific clinical situations in this guideline.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.2
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• pp.559-562
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• 2012

Serum alpha-fetoprotein (AFP) is a significant marker for clinical diagnosis and prognosis evaluation in hepatocellular carcinoma (HCC) patients. However, some proportion of liver cancer patients are AFP-negative (AFP ${\leq}$20ng/ml). In order to study the differences between clinicopathological factors and prognosis of alpha-fetoprotein negative and positive patients, a total of 114 cases (41 AFP-negative and 73 AFP-positive) were selected for our research. By systematically statistical analysis, the results demonstrated that compared with AFP-negative patients, AFP-positive examples were more likely to feature cirrhosis nodules, non-complete neoplasm capsules, and a poor Edmondson-steiner grade. Furthermore, AFP-negative patients demonstrated a favorable long-term prognosis. By univariate analysis and multivariate analysis with Cox's proportional hazards model, multiple tumors were found to be independent risk factors for worse survival of AFP negative patients; however, less tumor-free margins, multiple tumors and Edmondson-steiner grades III/IV, proved to be independent risk factors leading to a poor prognosis of AFP positive cases. Finally, we can infer that high levels of AFP signify a highly malignant tumor and unfavorable prognosis.

• The Journal of Internal Korean Medicine
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• v.25 no.4
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• pp.442-449
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• 2004

This study was designed to evaluate the effects of oriental medicine and acupuncture therapy on a chronic renal failure patient suffering complications from diabetes mellitus. Methods: The clinical data was analyzed on a patient with chronic renal failure complicated by diabetes mellitus whose main symptoms were edema and numbness of lower limbs, anorexia, indigestion, nausea, vomiting, and general weakness. The patient was admitted to the internal medicine department of Wonkwang University Oriental Jeonju Medicine Hospital on July 31, 2004, and remained until August 17, 2004. He was treated with herbal medicine(Palmijiwhangtanggamibang) and acupuncture therapy. Results: After treatment, improvement was seen in symptoms and laboratory examinations(creatinine clearance). Conclusions: This study suggests that oriental medicine therapy is significantly effective in the treatment of a chronic renal failure complicated by diabetes mellitus.

• Journal of The Korea Institute of Healthcare Architecture
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• v.11 no.1
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• pp.55-67
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• 2005

This study presents how Seoul National University Hospital, one of the representative hospitals in Korea, has been developed and changed from the opening to the present. It tried to find a trend in Korea hospital development through the investigation of Seoul National University Hospital, with the purpose of presenting a basic source of reference to hospital architecture planning.

• Journal of Gastric Cancer
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• v.23 no.1
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• pp.107-145
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• 2023

The first edition of 'A Standardized Pathology Report for Gastric Cancer' was initiated by the Gastrointestinal Pathology Study Group of the Korean Society of Pathologists and published 17 years ago. Since then, significant advances have been made in the pathologic diagnosis, molecular genetics, and management of gastric cancer (GC). To reflect those changes, a committee for publishing a second edition of the report was formed within the Gastrointestinal Pathology Study Group of the Korean Society of Pathologists. This second edition consists of two parts: standard data elements and conditional data elements. The standard data elements contain the basic pathologic findings and items necessary to predict the prognosis of GC patients, and they are adequate for routine surgical pathology service. Other diagnostic and prognostic factors relevant to adjuvant therapy, including molecular biomarkers, are classified as conditional data elements to allow each pathologist to selectively choose items appropriate to the environment in their institution. We trust that the standardized pathology report will be helpful for GC diagnosis and facilitate large-scale multidisciplinary collaborative studies.