2.Primary Carcinoma of the Gallbladder: An Analysis of 34 Cholecystectomy Cases with Special Reference to Metaplastic Changes.
Eun Sil YU ; Eui Keun HAM ; Yong Hyun PARK
Korean Journal of Pathology 1986;20(4):453-461
Primary gallbladder carcinoma is generally assumed as uncommon but dismal malignancy. Only sporadic studies about pathologic features of the gallbladder carcinoma have drawn pathologists attention especially in association with cholelithiasis. Currently, we have focused much on the role of metaplastic changes in diseased gallbladders including cholecystitis with or without cholelithiasis, and raised its implication in the development of benign or malignant neoplasm. The authors reviewed 34 cholecystectomy cases with primary gallbladder carcinoma, and their histologic findings were analyzed with reference to the association of metaplastic changes both in tumor and adjacent nonneoplastic mucosal epithelium. Association with gallstones and metaplastic changes in the surrounding nontumorous mucosa is more frequent in intestinal typen than in non-intestinal type (P<0.05). Gallstones may play a role of irritant stimuli to the gallbladder mucosa which can be eventually reconstructed with more resistant cell type. And the subsequent increase in absorptive capacity and accumulation of carcinogenic substance may result in malignant transformation of (reserve) cells in replication zone. At this time we can assume that association of cholelithiasis and presence of metaplastic changes are in parallel relationshop in intestinal type adenocarcinoma. Intestinal type adenocarcinomas are usually papillary (72.7%) especially in superficial portion, but deeper area also shows infiltrative growth focally. This finding is comparable to intestinal type gastric carcinoma which represents frequently a polypoid and papillary growth pattern. With these results, as in the gastric carcinoma it is strongly supported that intestinal metaplasia may play a major role as a precancerous lesion in a minor group of the gallbladder adenocarcinoma. Controlled prospective study on biological behavior of intestinal type adenocarcinoma should be followed with more cumulative cases.
Adenocarcinoma
3.Relationship between Vimentin Expression and Progression of Uterine Cervix Epithelial Neoplasms.
Sung Chul LIM ; Keun Hong KEE ; Hyun Jong PARK
Korean Journal of Pathology 1998;32(9):663-669
Vimentin is an intermediate filament protein normally expressed in mesenchymal cells, but the evidence of the aberrant expression of vimentin in epithelial cancer cells suggests that the vimentin expression might be related to local invasiveness and metastatic potential. There have been a few previous studies on the vimentin expression in human cervical carcinogenesis using in vivo and in vitro models. We examined the immunohistochemical vimentin expression in various squamous epithelial neoplasms of the uterine cervix, including the cervical intraepithelial neoplasia group (n=25), the microinvasive squamous cell carcinoma group (n=15), the invasive squamous cell carcinoma group (n=15) and the metastatic squamous cell carcinoma group (n=8). Vimentin positivity was significantly higher in the invasive than in the intraepithelial group, and in the cases with lymph node metastasis than in those without metastasis, suggesting a relationship between the vimentin expression and progression of the uterine cervical epithelial tumors.
Carcinogenesis
;
Carcinoma, Squamous Cell
;
Cervical Intraepithelial Neoplasia
;
Cervix Uteri*
;
Female
;
Humans
;
Intermediate Filaments
;
Lymph Nodes
;
Neoplasm Metastasis
;
Neoplasms, Glandular and Epithelial*
;
Vimentin*
4.Quantitative Evaluation of Dysphagia Using Scintigraphy.
Seok Gun PARK ; Jung Keun HYUN ; Seong Jae LEE
Korean Journal of Nuclear Medicine 1998;32(3):276-289
PURPOSE: To evaluate dysphagia objectively and quantitatively, and ta clarify the effect of neck position and viscosity changes in patients with aspiration and laryngeal penetration. MATERIALS AND METHODS: We studied 35 patients with dysphagia and 21 normal controls using videofluoroscopy and scintigraphy. Videofluoroscopy was performed with barium with three different viscosity, and scintigraphy was done, with water, yogurt, and steamed egg mixed with Tc-99m tin colloid. 1f aspiration was found during videofluoroscopic examination, patients neck position was changed and study repeated. Videofluoroscopy was analyzed qualitatively. We calculated 7 quantitative parameters from scintigraphy. According to the videofluoroscopic findings, we divided patients into 3 subgroups; aspiration, laryngeal penetration, and no-aspiration group. RESULTS: The result of videofluoroscopy revealed that the most cornmon finding was the delay in triggering pharyngeal swallow. Pharyrigeal transit time (PTT) and pharyngeal swallowing efficiency(PSE) in patients with aspiration were significantly different from other groups. After neck position change, aspiration could be reduced in all of 7 patients, and laryngeal penetration reduced hy about 82%. PTT ancl PSE were also improved after position change. Aspiration and laryngeal penetration occurred more frequently in thin liquid swallowing than in thick liquid and solid swallowing. CONCLUSION: PTT and PSE were useful for the evaluation of dysphagia. Aspiration and laryngeal penetration could be reduced when appropriate position assumed, We could decrease the chance of aspiration by changing the patient diet consisIency. Scintigraphy might be useful tool to quantitate and follow up these changes.
Barium
;
Colloids
;
Deglutition
;
Deglutition Disorders*
;
Diet
;
Evaluation Studies as Topic*
;
Follow-Up Studies
;
Humans
;
Neck
;
Ovum
;
Radionuclide Imaging*
;
Steam
;
Tin
;
Viscosity
;
Water
;
Yogurt
5.Carcinoma in situ of the urinary bladder in bladder washing cytology.
Doo Hyun CHUNG ; In Ae PARK ; Eui Keun HAM
Korean Journal of Cytopathology 1991;2(1):51-55
The diagnosis of carcinoma in situ of urinary bladder is difficult in that the symptoms and cystoscopic findings are nonspecific. The cytology of urine could be helpful for diagnosis of carcinoma in situ of urinary bladder. We present a case of bladder washing cytology of carcinoma in situ. A 54 year old man presented with dysuria for 1 year. Cystoscopic findings revealed multifocal reddish trabeculated lesions. The bladder washing cytology revealed rather uniform tumor cells which were singly scattered or forming syncytium in the clean background. The nuclei were round to oval with inconspicious nucleoli. The cystoscopic biopsy revealed typical histologic features of carcinoma in situ of urinary bladder.
Biopsy
;
Carcinoma in Situ*
;
Diagnosis
;
Dysuria
;
Giant Cells
;
Humans
;
Middle Aged
;
Urinary Bladder*
6.Shoulder Impingement Syndrome Combined with Myofascial Pain Syndrome.
Jin Young PARK ; Jung Keun HYUN ; Hong Keun PARK
The Journal of the Korean Orthopaedic Association 2005;40(7):839-844
PURPOSE: In order to study the frequency and the site of pain with shoulder impingement syndrome accompanied by myofascial pain syndrome (MPS), and to see how the treatment of impingement syndrome effects the improvement in myofascial pain. MATERIALS AND METHODS: Among patients diagnosed with shoulder impingement syndrome with MPS and who complained around of shoulder muscle pain 53 subjects were selected as subjects for this study. Patients were divided into three groups according to method of treatment; the first group was the cases who received impingement injection test, the second group were only carried out isometric strengthening exercise of the periscapular muscles and the rotator cuff, and the third group was the cases who failed conservative treatment and had a surgical operation. All subjects had a physical examination before treatment to see if the MPS was present in the muscles around the shoulder, the range of motion of shoulder, and the American Shoulder and Elbow Society (ASES) shoulder score were measured. RESULTS: There was no relation to between age, gender, impingement signs, tenderness around the joints, the range of motion and ASES shoulder score. The VAS was reduced from 6.2+/-2.3 to 1.2+/-1.5 (p<0.01), and ASES shoulder score increased from 32.1+/-15.3 to 87.5+/-17.7 (p<0.05). The differences among treatments of the three groups were not significant in pain and treatment outcome (p>0.05). CONCLUSION: Treatment of shoulder impingement syndrome reduced the symptoms of MPS, thus shoulder impingement syndrome can be the one of the causes of MPS.
Elbow
;
Humans
;
Joints
;
Muscles
;
Myalgia
;
Myofascial Pain Syndromes*
;
Physical Examination
;
Range of Motion, Articular
;
Rotator Cuff
;
Shoulder Impingement Syndrome*
;
Shoulder*
;
Treatment Outcome
;
Trigger Points
7.Congenital absence of the thenar muscles, bilateral: a case report.
Won Sik CHOY ; Chang Hyun BAEK ; Hyun Jin JANG ; Keun Hong PARK
The Journal of the Korean Orthopaedic Association 1991;26(3):991-994
No abstract available.
Muscles*
8.Detection of Point Mutations in the rpoB gene Related to Drug Susceptibility in Mycobacterium Tuberculosis using an Oligonucleotide Chip.
Hyun Jung KIM ; Seong keun KIM ; Tae Sun SHIM ; Yong Doo PARK ; Misun PARK
Tuberculosis and Respiratory Diseases 2001;50(1):29-41
BACKGROUND: The appearance of multiple-drug-resistant Mycobacterium tuberculosis strains has been seriously compromising successful control of tuberculosis. Rifampin-resistance, caused by mutations in the rpoB gene, can be indicative of multiple-drug-resistance, and its detection is of great importance. The present study aimed to develop an oligonucleotide chip for accurate and convenient screening of drug-resistance. METHODS: In order to detect point mutations in the rpoB gene, an oligonucleotide chip was prepared by immobilizing specific probe DNA to a microscopic slide glass by a chemical reaction. The probe DNA that was selected from the 81 bp core region of the rpoB gene was designed to have mutation sites at the center. A total of 17 mutant probes related to rifampin-resistance including 8 rifabutin-sensitive mutant probes were used in this study. For accurate determination, wild type probes were prepared for each mutation position with an equal length, which enabled a direct comparison of the hybridization intensities between the mutant and wild type. RESULTS: Mycobacterial genomic DNA from clinical samples was tested with the oligonucleotide chip and the results were compared with those of the drug-susceptibility test in addition to sequencing and INNO-LiPA Rif. TB kit test in some cases. Out of 15 samples, the oligonucleotide chip results of 13 samples showed good agreement with the rifabutin-sensitivity results. The two samples with conflicting result also showed a discrepancy between the other tests, suggesting such possibilities as existence of mixed strains and difference in drug-sensitivity. Further verification of these samples in addition to more case studies are required before the final evaluation of the oligonucleotide chip can be made. CONCLUSION: An oligonucleotide chip was developed for the detection of rpoB gene mutations related to drug-susceptibility. The results to date show the potential for using the oligonucleotide chip for accurate and convenient screening of drug-resistance to provide useful information in antituberculosis drug therapy.
DNA
;
Drug Therapy
;
Glass
;
Mass Screening
;
Mycobacterium tuberculosis*
;
Mycobacterium*
;
Point Mutation*
;
Rifabutin
;
Rifampin
;
Tuberculosis
9.Traumatic Spinal Subdural Hematoma : Value of MRI(Fat Suppression Technique) and Spinal Puncture : 2 Cases Report.
Sang Hoon PARK ; Dong Keun HYUN ; Chong Oon PARK ; Young Soo HA
Journal of Korean Neurosurgical Society 2000;29(6):810-814
No abstract available.
Hematoma, Subdural, Spinal*
;
Spinal Puncture*
10.Clinical Study on Children's Fractures
Seung Rim PARK ; Sung Keun SOHN ; Chang Il PARK ; Kang Hyun LEE
The Journal of the Korean Orthopaedic Association 1983;18(2):297-310
Fractures in children differ from those in adults. Because the anatomy, biomechanics, and physiology of a child's skeleton very differ from those of an adult, orthopedic surgeons frequently see differences in the pattern of fractures, the problems of diagnosis, and the method of treatment. So the present study is an clinical analysis of 622 cases of children's fractures under the age of 18 years, who were treated at the department of orthopedic surgery, Presbyterian Medical Center for the past 9 years from 1973 to 1981. Results obtained are as follows: 1. The peak age was 5. 2. The incidence in male was 2 times higher than in female. 3. The most common cause of fractures was traffic accident (65.6% of all cases). 4. The fracture in femur was most common (17.7%). 5. The most common injury combined with fracture was head injury (40.3%). 6. Among the joints elbow was most commonly injuried. 7. The incidence of epiphyseal injury was 10.3%. 8. The most common type of epiphyseal injury by Salter & Harris classification was type II and it's incidence was 57.8% of all epiphyseal injury. 9. 83% of all fractures were conservatively treated. 10. The incidence of complication of all cases was 8.5%.
Accidents, Traffic
;
Adult
;
Child
;
Classification
;
Clinical Study
;
Craniocerebral Trauma
;
Diagnosis
;
Elbow
;
Female
;
Femur
;
Humans
;
Incidence
;
Joints
;
Male
;
Methods
;
Orthopedics
;
Physiology
;
Protestantism
;
Skeleton
;
Surgeons