1.Adenocarcinoma of the urinary bladder: CT features.
Woo Kyung MOON ; Seung Hyup KIM ; Dae Young KIM ; Chung Gon CHOI ; Dae Seob CHOI ; Man Chung HAN
Journal of the Korean Radiological Society 1992;28(4):609-612
Adenocarcinoma of the urinary bladder, including urachal carcinoma, is a rare tumor with incidence in the range between 0.5% and 2.2% of all epithelial bladder neoplasms. Ten cases of adenocarcinoma of the urinary bladder(eight cases of primary adenocarcinoma and two cases of urachal carcinoma)are presented. We described the computed tomography(CT)appearances of adenocarcinoma of the urinary bladder and tried to find out the characteristic CT findings of urachal carcinoma. CT scan were evaluated for the location of the tumors, presence of calcification in the tumor, and the tumor extension. Seven tumors were located at the dome of the bladder(70%0, two were at lateral walls, and one was at anterior wall. Seven were single mass and three were multicentric masses in the bladder. Fine punctate calcifications scattered within the tumors were detected in four cases(40%); three of the eight, primary adenocarcinoma, and one of the two, urachal carcinoma. Two urachal carcinomas were characterized by midline position and predominantly extravesical growth along the urachus. Gross extravesical extension with distant metastasis were presented in seven cases(70%) at the time of initial diagnosis. CT may be useful in evaluating the adenocarcinoma of the urinary bladder and differentiating urachal carcinoma from bladder cancer.
Adenocarcinoma*
;
Diagnosis
;
Incidence
;
Neoplasm Metastasis
;
Tomography, X-Ray Computed
;
Urachus
;
Urinary Bladder Neoplasms
;
Urinary Bladder*
2.Clinical Effects and Safety of Delapril in Patients with Essential Hypertension.
Se Ick OH ; Hyung Gon KIM ; Gwang Ho CHUNG ; Suck Koo CHOI ; Won Sang YOO
Korean Circulation Journal 1992;22(4):676-682
BACKGROUND: To evaluate depressure effect and safety of delapril, a new ACE inhibitor, in Korea. METHOD: Thirty three patients, aged 37-69, with mild to moderate essential hypertension were first observed for 2 weeks with placebo followed by administration of 15mg of delapril twice daily for 2 weeks, then doubled dosage to 30mg b.i.d. and combined with 25mg of dihydrochlorothiazide if optimal BP were not obtained at the end of 4th week, continued the same dose until the end of 10 week's trial period. RESULT: BP dropped 15/9mmHg inaverage at the end of 10th week rewarding 70% of cumulative effectiveness. Most frequent side reaction was dry cough, occurred in 9% of patients followed by chest tightness, headache, constipation and transient elevation of GPT. CONCLUSION: Delapril 15-30mg twice daily as monotheraphy or combined with diuretics is well tolerated and effective in the treatment of mild to moderate essential hypertension.
Constipation
;
Cough
;
Diuretics
;
Headache
;
Humans
;
Hydrochlorothiazide
;
Hypertension*
;
Korea
;
Reward
;
Thorax
3.Significance of MRI Cord Signal Patterns in Acute Spinal Trauma.
Yung Tae KIM ; Choon Seong LEE ; Yong Sun CHO ; Sung Jin CHO ; Chung Gon CHOI
The Journal of the Korean Orthopaedic Association 1997;32(1):40-45
In the diagnosis of acute spinal trauma, meticulous physical examination and history taking is the most important tool and auxilliary support support can be given by plain X-ray, CT or myelography, etc. But these cannot show the state of cord injury directly. On the contrary, MRI shows the cord directly as well as the soft and bony tissues. We analysed retrospectively 39 patients who suffered from acute spinal trauma at the level of cervical and thoracic spine and had their spine MRI taken. We verified the meaningful correlation between the signal change in the spinal cord on MRI and the degree of neurologic deficit and prognosis, using Frankel classification and trauma motor index at the time of admission and the final follow-up.
Classification
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Magnetic Resonance Imaging*
;
Myelography
;
Neurologic Manifestations
;
Physical Examination
;
Prognosis
;
Retrospective Studies
;
Spinal Cord
;
Spine
4.Short- & Long-term Effectiveness of Intracavitary Urokinase in Loculated Thoracic Empyema.
Young Min HAN ; Ki Chul CHOI ; Chong Soo KIM ; Gyung Ho CHUNG ; Myung Hee SOHN ; Tae Gon JEONG
Journal of the Korean Radiological Society 1995;32(1):115-119
PURPOSE: The purpose of this study was to evaluate the short- and long-term effectivensess of intracavitary urokinase with percutaneous catheter drainage in Ioculated thoracic empyemas. MATERIALS AND METHODS: 15 patients were identified as second stage of Ioculated thoracic empyema by estimating nature of pleural fluid, chest PA, lateral decubitus view and CT scan. Under the guidance of fluoroscopy or ultrasound, catheter was inserted percutaneously. Instillation of urokinase was started when amount of drained fluid became less than 30ml per day with 100,000U of urokinase mixed with 100ml of normal saline. Trial of urokinase was repeated until complete drainage of empyema was demonstrated on plain chest film obtained after 48 hours. RESULTS: Successful complete drainage was achieved in 14 of 15 patients. In long-term study, complete resorption was demonstrated in 11 of 12 patients. Average dosage of used urokinase was 330,000U and mean duration of catherter insertion was 35 days. CONCLUSION: lntracavitary urokinase with percutaneous catheter drainage is a safe and effective method to facilitate drainage of Ioculated empyema and to prevent recurrence.
Catheters
;
Drainage
;
Empyema
;
Empyema, Pleural*
;
Fluoroscopy
;
Humans
;
Recurrence
;
Thorax
;
Tomography, X-Ray Computed
;
Ultrasonography
;
Urokinase-Type Plasminogen Activator*
5.Short- & Long-term Effectiveness of Intracavitary Urokinase in Loculated Thoracic Empyema.
Young Min HAN ; Ki Chul CHOI ; Chong Soo KIM ; Gyung Ho CHUNG ; Myung Hee SOHN ; Tae Gon JEONG
Journal of the Korean Radiological Society 1995;32(1):115-119
PURPOSE: The purpose of this study was to evaluate the short- and long-term effectivensess of intracavitary urokinase with percutaneous catheter drainage in Ioculated thoracic empyemas. MATERIALS AND METHODS: 15 patients were identified as second stage of Ioculated thoracic empyema by estimating nature of pleural fluid, chest PA, lateral decubitus view and CT scan. Under the guidance of fluoroscopy or ultrasound, catheter was inserted percutaneously. Instillation of urokinase was started when amount of drained fluid became less than 30ml per day with 100,000U of urokinase mixed with 100ml of normal saline. Trial of urokinase was repeated until complete drainage of empyema was demonstrated on plain chest film obtained after 48 hours. RESULTS: Successful complete drainage was achieved in 14 of 15 patients. In long-term study, complete resorption was demonstrated in 11 of 12 patients. Average dosage of used urokinase was 330,000U and mean duration of catherter insertion was 35 days. CONCLUSION: lntracavitary urokinase with percutaneous catheter drainage is a safe and effective method to facilitate drainage of Ioculated empyema and to prevent recurrence.
Catheters
;
Drainage
;
Empyema
;
Empyema, Pleural*
;
Fluoroscopy
;
Humans
;
Recurrence
;
Thorax
;
Tomography, X-Ray Computed
;
Ultrasonography
;
Urokinase-Type Plasminogen Activator*
6.Management of Urinary Stone with Potassium Citrate.
Hyun Gon CHOI ; Sung Kwang CHUNG ; Yoen Kyu PARK
Korean Journal of Urology 1995;36(7):731-735
Potassium citrate therapy caused a sustained increase in urinary pH and potassium, and restored urinary citrate to normal levels. No significant changes occurred in urinary uric acid, oxalate, sodium or phosphorus levels. Owing to these physiological changes, uric acid solubility increased, urinary saturation of calcium oxalate decreased and the propensity for spontaneous nucleation of calcium oxalate was reduced to normal. Therefore, the Physicochemical environment of urine following treatment become less conductive to the crystallization of calcium oxalate or uric acid. Twenty six patients with uric acid nephrolithiasis with or without calcium nephrolithiasis underwent treatment and long-term preventive management (mean of 20.8 months) with potassium citrate. Urinary pH increased from acid (5.0-5.5) to normal (6.5-7.0) during treatment. During the period of preventive management, stones were not developed.
Calcium
;
Calcium Oxalate
;
Citric Acid
;
Crystallization
;
Humans
;
Hydrogen-Ion Concentration
;
Nephrolithiasis
;
Oxalic Acid
;
Phosphorus
;
Potassium Citrate*
;
Potassium*
;
Solubility
;
Uric Acid
;
Urinary Calculi*
7.Effect of Alum Irrigation for the Control of Massive Bladder Hemorrhage.
Hyun Gon CHOI ; Sung Kwang CHUNG ; Bup Wan KIM
Korean Journal of Urology 1995;36(11):1265-1268
Intravesical Alum irrigation is the safest and most effective method of treatment for intractable hematuria. Continuous vesical irrigation with 1 percent Alum solution was performed without anesthesia in 20 patients in whom massive bladder hemorrhage persisted despite of evacuation of clots and normal saline irrigation for at least 24 hours. Hematuria ceased in 18 patients and side effect was not observed. We have found this technique to be simple, efficient, nontoxic and less expensive than Previously reported methods.
Anesthesia
;
Hematuria
;
Hemorrhage*
;
Humans
;
Urinary Bladder*
8.Characteristics of Acute Hemorrhagic Central Retinal Vein Occlusion.
Hyuk Jin CHOI ; Hyeong Gon YU ; Hum CHUNG
Journal of the Korean Ophthalmological Society 2003;44(8):1781-1788
PURPOSE: To investigate the characteristics of patients with acute hemorrhagic central retinal vein occlusion. METHODS: We reviewed the medical records of 124 eyes of 122 patients who were diagnosed to have central retinal vein occlusion within one month after onset and followed for six months or longer. Eyes were divided into three groups - ischemic, hemorrhagic and nonischemic - and the visual prognosis and complications were compared among the three groups. RESULTS: The hemorrhagic group had a tendency to be a male and younger than the other groups. The mean initial and final visual acuity of the hemorrhagic group was logMAR 1.23 and 1.54, respectively, and showed significant decrease rate of visual acuity compared to that of ischemic group (p=0.022), logMAR 1.31 and 1.35, respectively. Iris neovascularization (INV) / angle neovascularization (ANV) occurred in 6 eyes (7.4%) of the ischemic group and in 3 eyes (12.5%) of the hemorrhagic group. The mean period form the initial examination to INV/ANV occurrence was 4.67 and 2.33 months, respectively. All eyes of the hemorrhagic group and 4 eyes (66.7%) of the ischemic group with INV/ANV progressed to neovascular glaucoma. CONCLUSIONS: The hemorrhagic group had a worse final visual acuity, a greater decreasing rate of visual acuity, and earlier occurrence of INV/ANV than ischemic group. Close follow-up and proper management are warranted in patients with acute hemorrhagic central retinal vein occlusion.
Follow-Up Studies
;
Glaucoma, Neovascular
;
Humans
;
Iris
;
Male
;
Medical Records
;
Prognosis
;
Retinal Vein*
;
Visual Acuity
9.A Case of Chronic Active Hepatitis Developed in Patient with Psoriasis after Long-term Methotrexate Treatment.
Dae Hyun KIM ; Jae Hyun JO ; Min Su KEUM ; Seong Gon CHOI ; Chang Hyeong LEE ; Young Oh KWEON ; Sung Kook KIM ; Yong Whan CHOI ; Joon Mo CHUNG
The Korean Journal of Hepatology 1997;3(1):78-84
Methotrexate (MTX) has been widely used in the treatment of psoriasis and rheumatoid arthritis. But prolonged use of MTX can induce hepatic fibrosis and even cirrhosis. To date, in Korea, there have been very few reports on hepatotoxicity due to MTX, and no report on biopsy-proven chronic active hapatitis. We report one patient who developed chronic acitve hepatitis while taking long-term daily dose of MTX(10mg per day) for psoriasis for a prolonged period.
Arthritis, Rheumatoid
;
Fibrosis
;
Hepatitis
;
Hepatitis, Chronic*
;
Humans
;
Korea
;
Methotrexate*
;
Psoriasis*
10.A Case of Gastrocolic Fistula Secondary to Colon Cancer.
Joon Mo CHUNG ; Yong Hwan CHOI ; Young Oh KWEON ; Sung Kook KIM ; Sung Gon CHOI ; Young Hwan CHEIGH ; Wan Sik YU ; In Soo SUH
Korean Journal of Gastrointestinal Endoscopy 1995;15(4):755-763
Gastrocelic fistula of malignant origin is a rare complication, usually due to gastric or colon cancer. Possible other etiologic factors resulting in gastrocolic fistula are peptic ulcer, trauma, carcinoid tumor, intestinal tuberculosis, Crohn's disease, lymphoma, intraabdominal abscess, diverticulitis and etc. At the present, earlier diagnosis and treatment of gastric and colon cancer may explain the low frequency of malignant gastrocolic fistula than the past but the review of Korean literatures revealed only two reports of gastrocolic fistula secondary to gastric cancer and another from benign gastric ulcer. Yet, there has been no report of fistula due to colon cancer. We experienced a case of colon cancer with postural dizziness, fecal eructation who was diagnosed as gastrocolic fistula by endoscopy, barium enema, UGI series and finally underwent operation. Therefore, we report this case with the review of literatures.
Abscess
;
Barium
;
Carcinoid Tumor
;
Colon*
;
Colonic Neoplasms*
;
Crohn Disease
;
Diagnosis
;
Diverticulitis
;
Dizziness
;
Endoscopy
;
Enema
;
Eructation
;
Fistula*
;
Lymphoma
;
Peptic Ulcer
;
Stomach Neoplasms
;
Stomach Ulcer
;
Tuberculosis