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1.  Mycotic Abdominal Aortic Aneurysm Caused by Bacteroides Thetaiotaomicron and Acinetobacter Lwoffii: The First Case in Korea 
Infection & Chemotherapy  2014;46(1):54-58.
Mycotic aneurysms are uncommon, but are fatal without appropriate management. Previous reports have shown that anaerobes and gram-negative organisms are less common but more dangerous than other causative agents of mycotic aneurysm. We report the case of a 60-year-old man with poorly controlled diabetes mellitus and atherosclerosis in the aorta, and a 10-day of history of lower abdominal pain and fever. This man was diagnosed with an uncommon abdominal aorta mycotic aneurysm caused by Bacteroides thetaiotaomicron and Acinetobacter lwoffii. The aneurysm was successfully treated with antibiotics therapy and aorto-bi-external iliac artery bypass with debridement of the infected aortic wall. We present this case together with a review of the relevant literature.
PMCID: PMC3970306  PMID: 24693472
Aneurysm; Infected; Bacteroides thetaiotaomicron; Acinetobacter lwoffii
2.  The Role of Hand-Assisted Laparoscopic Surgery in a Right Hemicolectomy for Right-Sided Colon Cancer 
Annals of Coloproctology  2014;30(1):11-17.
The purpose of this study is to evaluate the perioperative and long-term oncologic outcomes of hand-assisted laparoscopic surgery (HALS) and standard laparoscopic surgery (SLS) and assess the role of HALS in the management of right-sided colon cancer.
The study group included 53 patients who underwent HALS and 45 patients who underwent SLS for right-sided colon cancer between April 2002 and December 2008.
The patients in each group were similar in age, American Society of Anesthesiologist (ASA) score, body mass index, and history of previous abdominal surgeries. Eight patients in the HALS group and no patient in the SLS group exhibited signs of tumor invasion into adjacent structures. No differences were noted in the time to return of normal bowel function, time to toleration of diet, lengths of hospital stay and narcotic usage, and rate of postoperative complications. The median incision length was longer in the HALS group (HALS: 7.0 cm vs. SLS: 4.8 cm, P < 0.001). The HALS group had a significantly higher pathologic TNM stage and significantly larger tumor size (HALS: 6.0 cm vs. SLS: 3.3 cm, P < 0.001). The 5-year overall, disease-free, and cancer-specific survival rates of the HALS and the SLS groups were 87.3%, 75.2%, and 93.9% and 86.4%, 78.0%, and 90.7%, respectively (P = 0.826, P = 0.574, and P = 0.826).
Although patients in the HALS group had more advanced disease and underwent more complex procedures than those in the SLS group, the short-term benefits and the oncologic outcomes between the two groups were comparable. HALS can, therefore, be considered an alternative to SLS for bulky and fixed right-sided colon cancer.
PMCID: PMC3953162  PMID: 24639965
Colonic neoplasms; Laparoscopy; Hand-assisted laparoscopy
3.  The Effects of Preoperative 18F-FDG PET/CT in Breast Cancer Patients in Comparison to the Conventional Imaging Study 
Journal of Breast Cancer  2012;15(4):441-448.
There have been recent studies of the 18F-fluorodeoxyglucose positron emission tomography and computed tomography (18F-FDG PET/CT) in the staging, detection, and follow-up of the breast cancer occurrence and recurrence. There was controversy concerning the use of 18F-FDG PET/CT for staging primary breast cancer. In this study, we investigated the potential effects of 18F-FDG PET/CT in the initial assessment of patients with primary breast cancer.
From January 2008 to December 2009, 154 consecutive biopsy-proven invasive breast cancer patients were enrolled in this study. Patients underwent conventional imaging studies including mammography, breast ultrasonography (USG), and magnetic resonance imaging for local assessment, and plain chest X-ray, liver USG, and bone scan to rule out distant metastasis. All 154 patients underwent 18F-FDG PET/CT in the initial assessment.
18F-FDG PET/CT did not detect primary breast lesions in 16 patients with a sensitivity of 89.6% and detected only 5 multiple lesions (12.5%) out of 40 cases. Histologically confirmed axillary lymph node (LN) metastases were in 51 patients, and the sensitivity and specificity of 18F-FDG PET/CT to detect metastatic axilla were 37.3% and 95.8%, respectively; whereas the corresponding estimates of USG were 41.2% and 93.7%, respectively. Eleven extra-axillary LN metastases were found in eight patients, and seven lesions were detected by 18F-FDG PET/CT only. The sensitivity and specificity of 18F-FDG PET/CT in detecting distant metastasis were 100% and 96.4%, respectively; whereas the sensitivity and specificity of the conventional imaging were 61.5% and 99.2%, respectively.
18F-FDG PET/CT cannot be recommended as a primary diagnostic procedure in breast cancer, but it has the potential to be used as an additional imaging tool for the detection of axillary metastasis, distant metastasis, and extra-axillary LN metastasis. 18F-FDG PET/CT cannot solely replace the conventional diagnostic procedure in primary breast cancer. The best approach may be the combination of different imaging modalities.
PMCID: PMC3542853  PMID: 23346174
Breast; Carcinoma; Computed tomography; Diagnostic imaging; Positron-emission tomography
4.  Experience of non-vascular complications following endovascular aneurysm repair for abdominal aortic aneurysm 
Journal of the Korean Surgical Society  2011;80(Suppl 1):S67-S70.
Endovascular aneurysm repair (EVAR) for the treatment of abdominal aortic aneurysm (AAA) is a widely used method, and its decreased invasiveness compared to traditional surgical repair has brought about reduced rates of morbidity and mortality. Several vascular complications related to the procedure have been reported, but non-vascular complications have rarely occurred. We report herein the case of a 78-year-old man who underwent EVAR for AAA and presented with active duodenal ulcer bleeding and acute acalculous cholecystitis as complications after the procedure. We must consider that a wide spectrum of complications may occur following EVAR, and therefore it is important to evaluate the risks of complication and to take the necessary measures to minimize them.
PMCID: PMC3205366  PMID: 22066089
Complication; Endovascular aneurysm repair; Abdominal aortic aneurysm
5.  A giant retroperitoneal lymphangioma in a patient with neurofibromatosis type 1 
Journal of the Korean Surgical Society  2011;80(Suppl 1):S43-S46.
Neurofibromatosis type 1 (NF-1) is a genetically inherited disorder that may cause skin abnormalities and tumors that form on nerve tissues. These tumors can be small or large and can occur anywhere in the body, including the brain, spinal cord, or other peripheral nerves. Retroperitoneal lymphangiomas are very rare benign malformations of the lymphatic system. About 95% lymphangiomas occur in the skin and the subcutaneous tissues of the head, neck and axillary region and the remaining 5% appear in other parts of the body such as lungs, pleura, pericardium, liver, gallbladder, kidney, and the mesentery. Herein, we report the case of a giant retroperitoneal lymphangioma in a patient with NF-1 with a review of the literature.
PMCID: PMC3205378  PMID: 22066082
Lymphangioma; Retroperitoneal neoplasms; Neurofibromatosis 1

Results 1-5 (5)