Leiomyoma is benign neoplasm of smooth muscle origin, which generally originate in gastrointestinal and female genital tract. Within head and neck, the common sites are the cervical esophagus and/or oral cavity. Their occurrence in the ear is extremely rare. There have been reported less than ten cases of leiomyomas of auricle in the world and can not be found in the Korean literature. Leiomyoma arising from auricle is classifed into two types, one from the erector pilar muscle and the other from the muscular coats of blood vessel. We present a case of leiomyoma in scapha of the ear. This benign tumor was treated by complete excision. This tumor was small, round, firm, solitary and microscopically well-encapsulated. The clinical and pathologic findings of auricular leiomyoma were described.
Blood Vessels ; Ear ; Esophagus ; Female ; Head ; Humans ; Leiomyoma* ; Mouth ; Muscle, Smooth ; Neck

Pulmonary pleomorphic carcinomas are rare malignant tumors that account for 0.1 to 0.4% of all lung cancers. They are notable for their aggressive clinical behavior and poor prognosis. We report here on a patient who is alive and disease-free 12 years after receiving surgical treatment for the rib recurrence of pulmonary pleomorphic carcinoma.
Humans ; Lung Neoplasms ; Prognosis ; Recurrence* ; Ribs

Mature T-cell and natural killer-cell neoplasms account for 10 to 15% of all non-Hodgkin's lymphomas. Of the various subtypes of mature T-cell and NK-cell lymphomas, extranodal NK/T-cell lymphoma, nasal type (nasal type NK/T-L) is relatively more common among Asians including Koreans. Nasal type NK/T-L is an aggressive, Epstein-Barr virus-associated lymphoma with characteristic expression of NK-cell antigen CD56. In this report, we present an unusual case of EBV(+), CD56(-) NK/T-L of oropharynx which recurred in duodenum after the period of complete remission lasting for 10 years. A 58-year-old woman presented with 3 months history of abdominal pain. Gastroduodenoscopy showed the diffuse wall thickening with multiple ulcerations in bulb and proximal second portion of the duodenum. Pathological examination revealed the infiltration of atypical lymphocytes, which was positive for CD3, CD4, CD5, TIA-1, and EBV and was negative for CD15, CD20, and CD56, consistent with NK/T-L of mature T-cell origin. The past medical history included the presence of oropharyngeal mass 10 years earlier, which was diagnosed as polymorphic reticulosis. The mass resolved completely after the radiation therapy, and she remained free of the disease for 10 years. Upon review, the oropharyngeal biopsy showed an identical morphology and immunophenotype with duodenal lesion. In conclusion, we experienced an unusal case of NK/T-cell lymphoma, nasal type recured in the duodenum.
Abdominal Pain ; Asian Continental Ancestry Group ; Biopsy ; Duodenum ; Female ; Granuloma, Lethal Midline ; Herpesvirus 4, Human ; Humans ; Lymphocytes ; Lymphoma* ; Lymphoma, Non-Hodgkin ; Middle Aged ; Oropharynx ; Recurrence* ; T-Lymphocytes ; Ulcer

No abstract available.
Administration, Metronomic ; Aged* ; Capecitabine* ; Colorectal Neoplasms* ; Drug Therapy* ; Humans

OBJECTIVE: To determine the relationship between whole body vibration (WBV) induced helicopter flights and degenerative changes of the cervical and lumbar spine. METHODS: We examined 186 helicopter pilots who were exposed to WBV and 94 military clerical workers at a military hospital. Questionnaires and interviews were completed for 164 of the 186 pilots (response rate, 88.2%) and 88 of the 94 clerical workers (response rate, 93.6%). Radiographic examinations of the cervical and the lumbar spines were performed after obtaining informed consent in both groups. Degenerative changes of the cervical and lumbar spines were determined using four radiographs per subject, and diagnosed by two independent, blinded radiologists. RESULTS: There was no significant difference in general and work-related characteristics except for flight hours and frequency between helicopter pilots and clerical workers. Degenerative changes in the cervical spine were significantly more prevalent in the helicopter pilots compared with control group. In the cervical spine multivariate model, accumulated flight hours (per 100 hours) was associated with degenerative changes. And in the lumbar spine multivariate model, accumulated flight hours (per 100 hours) and age were associated with degenerative changes. CONCLUSION: Accumulated flight hours were associated with degenerative changes of the cervical and lumbar spines in helicopter pilots.
Aircraft* ; Hospitals, Military ; Humans ; Informed Consent ; Military Personnel ; Spine* ; Vibration ; Surveys and Questionnaires

Ameloblastoma ; Bicuspid ; Busan ; Female ; Humans ; Male ; Mandible ; Molar ; Odontogenic Cysts ; Odontogenic Tumors ; Recurrence ; Retrospective Studies ; Surgery, Oral ; Tooth ; Tooth, Impacted

BACKGROUND/AIMS: The number of patients with ulcerative colitis has steadily increased since the mid-1980s. As the risk of colon cancer increases with duration and extents, colitic cancers are expected to increase in number in Korea. We surveyed the current status of colitic cancers and provided the perspectives in Korea. METHODS: Korean Association for the Study of Intestinal Diseases (KASID) collected and descriptively analyzed a total of eleven cases of colitic cancers occurred between 1993 and 2003. RESULTS: The mean age at the diagnosis of colitic cancer was 49.3 years, and the mean duration of ulcerative colitis was 12.5 years. Of the diagnosed cases, 91% was associated with pancolitis, 28% had right colon cancers and 18.2% had multiple tumors. Colitic cancers diagnosed at Dukes' stage D were 36.3%. Stages at diagnosis were lower in patients with good compliance. Up to 2003, cumulative incidence ratio of colitic cancer to ulcerative colitis was estimated to be 0.5%, which was much less than the overall prevalence of 3.7% in the Western countries. This incidence was also less than the expected cumulative incidence ratio of 0.9%, which was estimated by adopting the average results of meta-analysis in the Western world. CONCLUSIONS: As the incidence of ulcerative colitis has not reached a plateau, and as the diagnosis of colitic caners are delayed in Korea, the cumulative incidence of colitic cancers might have appeared to be low. Geographic and racial factors, and the effect of preventive measures might have contributed to the lower incidence which remains to be proven. Since colitic cancers are expected to increase steeply in the near future in Korea, the importance of surveillance and prevention cannot be over-emphasized.
Adolescent ; Adult ; Aged ; Colitis, Ulcerative/*complications/epidemiology ; Colorectal Neoplasms/epidemiology/*etiology ; English Abstract ; Female ; Humans ; Incidence ; Korea/epidemiology ; Male ; Middle Aged

Endoscopic ultrasonography-guided intervention has gradually become a standard treatment for peripancreatic fluid collections (PFCs). However, it is difficult to popularize the procedure in Korea because of restrictions on insurance claims regarding the use of endoscopic accessories, as well as the lack of standardized Korean clinical practice guidelines. The Korean Society of Gastrointestinal Endoscopy (KSGE) appointed a Task Force to develope medical guidelines by referring to the manual for clinical practice guidelines development prepared by the National Evidence-Based Healthcare Collaborating Agency. Previous studies on PFCs were searched, and certain studies were selected with the help of experts. Then, a set of key questions was selected, and treatment guidelines were systematically reviewed. Answers to these questions and recommendations were selected via peer review. This guideline discusses endoscopic management of PFCs and makes recommendations on Indications for the procedure, pre-procedural preparations, optimal approach for drainage, procedural considerations (e.g., types of stent, advantages and disadvantages of plastic and metal stents, and accessories), adverse events of endoscopic intervention, and procedural quality issues. This guideline was reviewed by external experts and suggests best practices recommended based on the evidence available at the time of preparation. This will be revised as necessary to address advances and changes in technology and evidence obtained in clinical practice and future studies.

Endoscopic ultrasonography-guided intervention has gradually become a standard treatment for peripancreatic fluid collections (PFCs). However, it is difficult to popularize the procedure in Korea because of restrictions on insurance claims regarding the use of endoscopic accessories, as well as the lack of standardized Korean clinical practice guidelines. The Korean Society of Gastrointestinal Endoscopy appointed a Task Force to develop medical guidelines by referring to the manual for clinical practice guidelines development prepared by the National Evidence-Based Healthcare Collaborating Agency. Previous studies on PFCs were searched, and certain studies were selected with the help of experts. Then, a set of key questions was selected, and treatment guidelines were systematically reviewed. Answers to these questions and recommendations were selected via peer review. This guideline discusses endoscopic management of PFCs and makes recommendations on Indications for the procedure, pre-procedural preparations, optimal approach for drainage, procedural considerations (e.g., types of stent, advantages and disadvantages of plastic and metal stents, and accessories), adverse events of endoscopic intervention, and procedural quality issues. This guideline was reviewed by external experts and suggests best practices recommended based on the evidence available at the time of preparation. This will be revised as necessary to address advances and changes in technology and evidence obtained in clinical practice and future studies.

Endoscopic ultrasonography-guided intervention has gradually become a standard treatment for peripancreatic fluid collections (PFCs). However, it is difficult to popularize the procedure in Korea because of restrictions on insurance claims regarding the use of endoscopic accessories, as well as the lack of standardized Korean clinical practice guidelines. The Korean Society of Gastrointestinal Endoscopy (appointed a Task Force to develope medical guidelines by referring to the manual for clinical practice guidelines development prepared by the National Evidence-Based Healthcare Collaborating Agency. Previous studies on PFCs were searched, and certain studies were selected with the help of experts. Then, a set of key questions was selected, and treatment guidelines were systematically reviewed. Answers to these questions and recommendations were selected via peer review. This guideline discusses endoscopic management of PFCs and makes recommendations on indication for the procedure, pre-procedural preparations, optimal approach for drainage, procedural considerations (e.g., types of stent, advantages and disadvantages of plastic and metal stents, and accessories), adverse events of endoscopic intervention, and procedural quality issues. This guideline was reviewed by external experts and suggests best practices recommended based on the evidence available at the time of preparation. This will be revised as necessary to address advances and changes in technology and evidence obtained in clinical practice and future studies.